Preventive maintenance device for pavement micro-surface

The invention relates to the technical field of roads, and discloses a road surface micro-surface preventive maintenance device which comprises a moving mechanism, a suction mechanism, a watering mechanism and a cleaning mechanism, the moving mechanism comprises a vehicle body, and universal wheels are fixedly connected to the bottom of the vehicle body; the suction mechanism comprises a working barrel, the bottom of the working barrel is fixedly connected with a working head, the top of the working barrel is fixedly connected with an air pump, and the top of the air pump is fixedly connected with a connecting pipe. According to the road surface micro-surface preventive maintenance device, an air pump located at the top of a working barrel works, negative pressure is generated in the working barrel, and therefore sundries and chippings on a road surface are sucked into an inner cavity of a working head by atmospheric pressure and enter an inner cavity of a treatment box sequentially through the working barrel