Flattening device for pavement waterproof construction

The flattening device comprises a rack, a supporting rod is fixedly connected to the front side of the top of the rack, a spraying frame is fixedly connected to the outer wall of the bottom of the supporting rod, a flowing cavity is formed in the spraying frame, an atomizing spray head is fixedly installed on the outer wall of the bottom of the spraying frame, and the atomizing spray head is fixedly connected to the top of the rack. The inner wall of the atomizing nozzle communicates with the inner wall of the flowing cavity, connecting frames are fixedly connected to the outer walls of the two sides of the spraying frame, connecting bearings are fixedly connected to the outer walls of the bottoms of the connecting frames, first supports are fixedly installed on the outer walls of the bottoms of the connecting bearings, and rolling wheels are rotatably connected to the bottoms of the first supports; when being pushed to a road surface needing waterproof processing, the road surface waterproof spraying device