The invention discloses a cleaning device for an environment-friendly construction waste conveying pipeline. The cleaning device comprises a push rod, an engine, a wire winding disc and a cleaning head, the bottom of the engine is fixed on a supporting frame, the push rod is fixed at the left end of the supporting frame, and a bottom box is fixed at the bottom of the supporting frame; a water pumpis arranged on the left side of the interior of the bottom box, and furthermore, an input shaft on the water pump is connected with an output shaft on the engine; a water inlet pipe is connected to an water inlet in the left side of the water pump, and a water outlet in the right side of the water pump is connected with a cleaning pipe; and a support is fixed on the upper part of the right side of the supporting frame, the wire winding disc is installed on the support, a cleaning pipe main body is wound around the wire winding disc, and the right end of the cleaning pipe is provided with thecleaning head. According to the cleaning device for the environment-friendly construction waste conveying pipeline, the push rod, the engine, the wire winding disc and the cleaning head are arranged,so that the problems that the inner wall of a construction waste conveying pipe is inconvenient to clean, and the water spraying dead angle occurs when the cleaning pipe sprays water to the conveyingpipe are solved.