Interconnection and cooperation between multi-energy microgrids can alleviate the mismatch between distributed generation and demand, and reduce the operating costs of the power system. Existing microgrid cooperation methods often overlook the network constraints of the underlying distribution network operation, making them difficult to apply to real systems. Therefore, a multi-microgrid Nash bargaining model based on dynamic operating envelopes (DOEs) is proposed. First, a distribution network and a microgrids model incorporating multiple energy forms are established. Second, based on the optimal power flow of the distribution network, the import and export limits of microgrids are dynamically set at different times, while DOEs are calculated and assigned to different microgrids. Finally, the heterogeneous energy within each microgrid is optimized by incorporating DOEs constraints into the original microgrid scheduling objective function and constraints, and transactions between participating microgrids are carried out using the Nash bargaining strategy. Case study results show that the proposed model is able to decouple the decisions made by the distribution grid and microgrids, and the distribution grid ensures its integrity through DOEs without directly controlling the transactions among the microgrids. In addition, by optimizing the electricity transactions, the model promotes the complementarity among heterogeneous energies within the microgrids and improves the energy utilization rate.