Oxygenating water pump

The invention relates to an oxygenating water pump. The oxygenating water pump comprises a motor, an impeller and a pump chamber enclosure. A water inlet and a water outlet are formed in the pump chamber enclosure. The oxygenating water pump is characterized in that a jet device is arranged on the water outlet of the pump chamber enclosure and composed of a jet nozzle, a suction chamber and a diffuser pipe. A spiral groove is formed in the inner side wall of a throat pipe of the diffuser pipe, and the jet device and the pump chamber enclosure are connected into a whole. Due to the fact that the jet device is directly arranged on the water outlet of the water pump, equipment does not need to be additionally arranged for oxygenation, and thus manufacturing cost is lowered substantially; due to the fact that the spiral groove is formed in the inner side wall of the throat pipe of the jet device, water and gas can be mixed more evenly after passing through the throat pipe, and the dissolved oxygen can be increase