Improved adjusting and flattening device

The utility model relates to the technical field of road surface flattening, in particular to an improved adjusting flattening device which comprises a flattening device body and a pressing roller, the pressing roller is arranged at the bottom of the flattening device body, the left end of the flattening device body is fixedly connected with a support, and the right side of the bottom of the support is fixedly connected with a motor. By starting a motor, an output shaft of the motor drives the left end of a circular plate, the circular plate drives a guide block to do circular motion, the guide block drives the groove plate to move downwards while sliding along a sliding groove of the groove plate, the groove plate drives vertical rods on the two sides to slide along the inner wall of a sleeve rod, the vertical rods drive a connecting plate to move downwards, and the connecting plate drives a fan to move downwards; the motor is turned off after a proper height is adjusted, then the fan and the water pump are