Cleaning device for building concrete delivery pump pipe

The invention relates to the field of building construction, in particular to a cleaning device for a building concrete delivery pump pipe, which comprises a dredging device for cleaning concrete adhered to the inner wall of the delivery pump pipe, and the dredging device is mounted on a self-walking device capable of driving the dredging device to move along the axis direction of the inner wall of the delivery pump pipe. The dredging device comprises a support, a sweeping mechanism and a material receiving mechanism used for receiving removed concrete, the material receiving mechanism is located below the sweeping mechanism, a material suction hose used for sucking out the concrete on the material receiving mechanism is further arranged on the support, one end of the material suction hose is located at the material receiving mechanism, and the other end of the material suction hose is located below the sweeping mechanism. Through cooperation of the sweeping mechanism, the material receiving mechanism and the