Cement silo cleaning device in cement silo

The utility model discloses a device for cleaning cement in a cement silo, which belongs to the technical field of cement silos and comprises a tank body, a hydraulic lifting operating platform is arranged on the outer side of the tank body, a plurality of liquid nitrogen tank adjusting mechanisms are mounted on the hydraulic lifting operating platform, and a lifting mechanism for driving the hydraulic lifting operating platform is mounted at the top of the tank body. Liquid nitrogen gun joints are uniformly distributed on the side wall of the tank body, the liquid nitrogen gun joints directly face the liquid nitrogen tank adjusting mechanism, and the hydraulic lifting operation table is composed of a movable ring connected to the outer side wall of the tank body in a sliding mode, a working table top located below the movable ring and fixed to the movable ring and a protective fence installed on the outer side of the working table top; according to the silo cleaning device, cement is conveyed to the central