Two end liquid feeding labyrinth screw pump

The utility model discloses a labyrinth type screw pump, which is used for the occasions with small flow and high pump lift, and the pump lift can reach up as high as 300 to 400 meters. The liquid inflow cavity for the liquid inflow of the two ends of the labyrinth type screw pump is close to a spiral stator part and a spiral rotor part, an annular jointing liquid distribution cavity which is used for liquid outflow and liquid storage and a flow guide hole which is communicated with the liquid distribution cavity and a liquid inflow cavity are arranged in the liquid inflow cavity, corresponding flow guide surfaces are arranged on the rotor and the minor axis of the rotor and are matched with mechanical sealing devices. The utility model solves the problem of the practical improvement of the prior art and shows the new foreground of the structure products.