Heating water pump impeller

The utility model relates to the technical field of water pumps, in particular to a heating water pump impeller which comprises an impeller supporting seat, the impeller supporting seat is cylindrical, a round hole is formed in the surface of the impeller supporting seat and matched with a driving shaft, a rotating mechanism is placed at the bottom of a pump shell, and the impeller supporting seat is placed on the surface of the rotating mechanism. A round hole and a rectangular groove in the surface of an impeller supporting seat are connected with a driving shaft and a rectangular groove in the surface of the driving shaft in a sleeving mode, the impeller supporting seat is in threaded connection with the driving shaft through a bolt and a gasket on the bolt, the impeller supporting seat can be replaced through threaded connection of the impeller supporting seat and the driving shaft in a clamping mechanism, and the maintenance cost of the water pump is reduced; when the driving shaft rotates, the driving s