Disassembling and assembling tool for impeller of induced draft fan

The utility model provides a blower and induced draft fan impeller disassembly and assembly tool which is used for disassembling or assembling a fan impeller from a fan main shaft, a plurality of through holes are formed in the position, close to a hub, of the fan impeller in the circumferential direction, a threaded connection hole is formed in the front end of the fan main shaft, and the blower and induced draft fan impeller disassembly and assembly tool comprises a tool false shaft, a disassembly and assembly supporting plate and a plurality of double-thread screws. The diameter of the tool false shaft is in clearance fit with a shaft hole of a fan impeller, a threaded connector is arranged at the front end of the tool false shaft, and the threaded connector is in threaded fit with the end of a fan main shaft; the disassembly and assembly support plate is fixed on the tool dummy shaft, a plurality of disassembly and assembly connecting holes are formed in the disassembly and assembly support plate in the c