Urban sewer anticorrosion cleaning device

The invention discloses an urban sewer anticorrosion cleaning device, and belongs to the technical field of sewer anticorrosion. The urban sewer anticorrosion cleaning device comprises a sewer pipeline, a sleeve, a switching device, an stretching device, a pressing device, a cleaning device, a collecting device and two bearing plates, wherein the sewer pipeline is arranged on a horizontal plane, and the sewer pipeline is a three-way sewer pipe; the sleeve is sleeved on the sewer pipeline, the two bearing plates are symmetrically arranged on the side walls of the sleeve, the switching device is installed on the sleeve, the stretching device is installed on the bearing plates, the pressing device is installed on the stretching device, the cleaning device is installed on the bearing plates, and the collecting device is installed on the bearing plates. Garbage in the pipeline is accumulated through cooperation of the stretching device and the pressing device, the accumulated garbage is cleared into the collecting