NOVELTY - Multifunctional energy system based on appropriate transformation of fossil fuels chemical energy comprises a synthesis gas preparation and waste heat recycling subsystem, a chemical product synthesizing and refining subsystem and a generating subsystem. The synthesis gas preparation and waste heat recycling subsystem is utilized for: appropriately transforming coal and natural gas into high-temperature synthesis gas through a partial gasification and reforming unit, conveying the cooled high-temperature synthesis gas to the chemical products synthesis and refining subsystem.    USE - Used as a multifunctional energy system based on appropriate transformation of fossil fuels chemical energy.    ADVANTAGE - The system has a simple and compact structure, is economical, and does not cause irreversible loss during total gasification of coal and reforming of natural gas.    DETAILED DESCRIPTION - Multifunctional energy system based on appropriate transformation of fossil fuels chemical energy comprises a synthesis gas preparation and waste heat recycling subsystem, a chemical product synthesizing and refining subsystem and a generating subsystem. The synthesis gas preparation and waste heat recycling subsystem is utilized for: appropriately transforming coal and natural gas into high-temperature synthesis gas through a partial gasification and reforming unit, conveying the cooled high-temperature synthesis gas to the chemical products synthesis and refining subsystem and simultaneously conveying the generated high-temperature vapor to the generating subsystem. The chemical products synthesis and refining subsystem is utilized for: pressurizing the received high-temperature synthesis gas and conveying it to a chemical products synthesis reactor to compose chemical products, then obtaining refined chemical products through a refining unit, where the non-converted gas discharged in the chemical products synthesis process is recycled for conveying to the generating subsystem and the generating subsystem is utilized for converting the non-converted synthesis gas in the chemical products synthesis and refining subsystem and high-temperature vapor of a waste heat recycling subsystem into electric power output, and providing processed vapor for the synthesis gas preparing and waste heat recycling subsystem.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic representation of multifunctional energy system based on appropriate transformation of fossil fuels chemical energy.