Extractable impeller of spiral centrifugal pump

The utility model relates to the technical field of spiral centrifugal pumps, in particular to an extractable impeller of a spiral centrifugal pump, which comprises a fixed base, a mounting seat is arranged at the top of the fixed base and close to the left side, a volute is arranged at the top of the mounting seat, and symmetrically distributed T-shaped guide rails are arranged at the top of the fixed base. The two T-shaped guide rails are jointly and movably connected with a moving plate, the top of the moving plate is rotationally connected with a rotating plate, and a motor is arranged at the top of the rotating plate. According to the spiral centrifugal pump, the movable plate is in sliding connection with the T-shaped guide rail, after the sealing plate is separated from the volute, the movable plate can drive the rotating plate, the motor, the coupler, the rotating shaft, the sealing plate and the impeller to synchronously move rightwards, so that the impeller is moved out of the volute, the pulled-out