The urgent need for advanced privacy mechanisms in the digital era is underscored by the growing concerns over data breaches and privacy invasions. Traditional privacy management methods often fall short in addressing these challenges, primarily due to their static nature and limited adaptability to evolving cyber threats. This work presents an efficient method to privacy management by integrating blockchain technology with adaptive privacy mechanisms, leveraging the power of machine learning (ML) and deep learning (DL) algorithms. Existing privacy management systems are predominantly rigid, offering limited scope for dynamic adaptation to changing network conditions and user behaviors. Such systems are increasingly inadequate in handling the complexities of modern data environments, often leading to compromised data confidentiality and higher instances of unauthorized data access or policy violations for different use cases. In response, this paper introduces an innovative model that employs smart contracts on the blockchain for privacy policy enforcement operations. These smart contracts ensure secure, transparent, and immutable privacy management, markedly enhancing data confidentiality and reducing policy violations under different attacks. Furthermore, the application of Reinforcement Learning (RL), enables dynamic privacy policy management operations. RL's ability to learn and adjust policies adaptively in response to environmental feedback ensures improved responsiveness and efficiency in privacy settings. A novel aspect of this work is the integration of Anomaly Detection using Deep Neural Networks (DNNs) with blockchain technology for self-adaptive security. DNNs' proficiency in identifying complex patterns in large datasets allows for the early detection of privacy breaches, enhancing the overall security performance levels. Additionally, the implementation of Differential Privacy in Federated Learning addresses the challenge of preserving data privacy during collective model training, thus ensuring robust privacy protection operations. The proposed methods were tested on various real-time simulation datasets, showcasing superior performance over existing methods in terms of energy efficiency, speed, throughput, consistency, and packet delivery ratio sets. This work not only presents a significant advancement in privacy management but also sets a new standard for future research in the field of data privacy and security levels.