The utility model provides a
cement paste stirring device for well cementation operation, which relates to the technical field of
cement paste stirring and comprises a supporting plate, a vertical plate is fixedly mounted on the top surface of the supporting plate, a motor is fixedly mounted on the side surface of the vertical plate, a rotating rod is mounted at the output end of the motor, a
frustum roller is fixedly mounted at one end of the rotating rod, and the
frustum roller is fixedly mounted on the other end of the rotating rod. And the surface of the
frustum roller communicates with a feeding
pipe, the inner wall of the feeding
pipe is slidably connected with a blocking rod, a cone is fixedly installed at the top end of the blocking rod, and a connecting plate is fixedly installed on the surface of the blocking rod. According to the utility model, the cone and the blocking rod are automatically driven to move by utilizing the pressure of
cement paste, so that the feeding
pipe is automatically opened and closed, the intervention requirement of operators is reduced, the operation efficiency and safety are improved, and after the
cement paste conveying process is finished, the blocking rod can automatically return and seal the feeding pipe, so that the labor intensity of workers is reduced. External impurities are effectively prevented from entering and
cement paste is effectively prevented from leaking, the sealing performance is improved, and practicability is high.