Pavement maintenance device and use method thereof

The invention relates to a pavement maintenance device and a use method thereof. The pavement maintenance device comprises a vehicle body, a heating tank is installed at the top of the vehicle body, a stirring mechanism is installed on the heating tank, and a first spray head assembly, a jet head assembly and a second spray head assembly are sequentially arranged at the bottom of the vehicle body from the vehicle head to the vehicle tail. The heating tank is provided with a first high-pressure pump and a second high-pressure pump, a first feeding pipe is installed between the first high-pressure pump and the first spray head assembly, a second feeding pipe is installed between the second high-pressure pump and the second spray head assembly, an air compressor is fixedly installed at the top of the vehicle body and connected with an air feeding pipe, and the end, away from the air compressor, of the air supply pipe is connected with the jet head assembly. The pavement maintenance device has the effect of impro