The embodiment of the utility model provides a drainer cleaning device, and relates to the technical field of drainer cleaning. The drainer cleaning device comprises a drainer body, a water
inlet valve, a blow-down valve and a ground blow-down
pipe, the drainer body is provided with a cleaning hole and a blow-down hole, the cleaning hole is used for being externally connected with a
water source, the position of the cleaning hole is higher than that of the blow-down hole, the water
inlet valve is arranged in the cleaning hole, the blow-down valve is arranged in the blow-down hole, and the ground blow-down
pipe is communicated with the blow-down hole. The cleaning hole is externally connected with a fire-fighting connector, the water
inlet valve is opened, water enters the drainer body through the cleaning hole for flushing, the blow-down valve is opened, and
sewage after flushing directly flows out of the drainer body through the blow-down hole and is collected in the blow-down
pipe to be discharged outwards. According to the drainer cleaning device, the interior of the drainer body can be cleaned without disassembling the drainer body, cleaning work can be conveniently and efficiently carried out, and the cleaning efficiency of the drainer is effectively improved.