Movable hydraulic pipeline cleaning trolley and working method

The invention relates to the technical field of hydraulic pipeline cleaning, in particular to a movable hydraulic pipeline cleaning trolley and a working method, and solves the problem of low cleaning efficiency of a hydraulic system pipeline cleaning device in the prior art. The movable hydraulic pipeline cleaning trolley comprises a hydraulic pipeline cleaning device and an oil return transition device, and the oil return transition device is connected to an oil return pipeline of the hydraulic pipeline cleaning device. The hydraulic pipeline cleaning device comprises a first walking machine body, an oil tank and a pump station are arranged in the first walking machine body, and the oil inlet end of the pump station is communicated with the oil tank. The device is good in structural integration level and high in flexibility, can meet the requirement for cleaning oil stains of a pipeline at a time, and can perform secondary filtration on oil liquid to avoid secondary pollution. And the oil return block modul