Vehicle-mounted cleaning device

The utility model discloses a vehicle-mounted cleaning device. A hanging bracket is mounted at the back end of a vehicle-mounted dustbin, a lifting machine bracket driven by a lifting hydraulic cylinder is mounted on the hanging bracket, a cleaning roller is mounted on the lifting machine bracket, two side cleaning rollers are respectively mounted on both sides in front of the cleaning roller, a parabolic roller of which the rotating direction is opposite to that of the cleaning roller is mounted in the position close to the front part above the cleaning roller in a tangential way, a sealed cleaning roller box is mounted at the periphery of the parabolic roller and the cleaning roller, a dust preventing apron is mounted below the cleaning roller box and at the periphery of the cleaning roller, a pair of wheels are mounted behind and below the dustbin on the lifting machine bracket, a transmission wheel is mounted on a drive axle of each wheel shaft through a differential device, a hydraulic pump is mounted on each transmission wheel, two hydraulic driving motors are respectively mounted on the cleaning roller and the parabolic roller, and a hydraulic oil tank which is respectively communicated with the hydraulic pumps and the hydraulic cylinder is mounted on the lifting machine bracket.