Liquid-gas mixing pump

The invention discloses a liquid-gas mixing pump which comprises a rotating part, a liquid-gas mixing part and a liquid-gas mixing part, a limiting part is arranged along the axis of the rotating part, and the limiting part has a height difference in the vertical direction; the driving assembly is in driving connection with the rotating part so as to drive the rotating part to rotate; one end of the connecting rod is in sliding connection with the limiting part; the connecting rod penetrates through the positioning part and is in sliding connection with the positioning part; the leather cup body is arranged on the side, away from the rotating part, of the connecting rod, and the leather cup body is provided with a containing space; the driving assembly drives the rotating part to rotate, so that the connecting rod slides along the limiting part, the connecting rod is driven to move in the direction close to or away from the leather cup body, and the leather cup body is compressed or relaxed. According to the