Sewer line cleaning device

The invention belongs to the technical field of sewers, and particularly relates to a sewer pipeline cleaning device which comprises a base, a pumping assembly, a heat exchange assembly, a protective cover shell and a cleaning pipe, during work, an engine of the pumping assembly drives a high-pressure pump to operate, high-pressure water flow is generated and sprayed out through the cleaning pipe and a cleaning nozzle, and a sewer pipeline can be dredged and cleaned. Due to the fact that high-temperature flue gas can be generated when the engine works, the outlet section of the exhaust manifold communicates with the heat exchange assembly, and when flowing through the gas path branch pipe, the flue gas can exchange heat with water in the heat exchange sleeve to heat the water. By means of the arrangement, water flowing into the high-pressure pump from the water outlet becomes hot water, the sewer line is cleaned through the hot water, the dirt removing capacity is higher, the cleaning effect of the sewer line