Urban road haze removal and dust fall device and method

The invention belongs to the technical field of road dust fall, and particularly relates to an urban road haze removal and dust fall device which comprises a supporting frame, a mounting box is arranged at the bottom of the supporting frame, a filter plate is fixedly connected into the mounting box, filter holes are formed in the filter plate, a shutter is arranged in front of the filter plate and fixedly connected to the mounting box, and the mounting box is fixedly connected with the mounting box. A cleaning assembly is arranged on the surface of the filter plate, an exhaust assembly is arranged on the back face of the filter plate, and a spraying assembly is arranged at the top of the supporting frame. Dust is absorbed from the bottom of the supporting frame through the exhaust assembly, dust on the top of the supporting frame is reduced in cooperation with the spraying assembly, raised dust and haze on the road in the three-dimensional space are treated, and the dust and haze removing efficiency of the ro