Cleaning device of drainage pipeline

The invention discloses a cleaning device of a drainage pipeline. The cleaning device of the drainage pipeline comprises a trolley, a water storage tank is arranged on the trolley, a water inlet connecting pipe communicates with the rear side of the top of the water storage tank, a flange plate is arranged at the top of the water inlet connecting pipe, and a water inlet valve is arranged in the middle of the water inlet connecting pipe. A pneumatic pump is arranged on the front side of the top of the water storage tank, an air pipe communicates between an air outlet of the pneumatic pump and the water storage tank, a siphon pipeline is arranged on the front side wall of the water storage tank, and a siphon pipeline fixed block is arranged between the siphon pipeline and the front side wallof the water storage tank. The cleaning device of the drainage pipeline is simple in structure and convenient to operate, the device can be convenient to move through the trolley, and the convenienceof working personnel for