Ground surface crack repairing device for coal mining subsidence area

The invention relates to the technical field of crack repairing, and discloses a coal mining subsidence area ground surface crack repairing device which comprises a vehicle body provided with a grouting mechanism, the vehicle body is connected with a left pressing plate and a right pressing mechanism which are used for extruding the ground surface, and a first height adjusting mechanism is arranged between the right pressing mechanism and the vehicle body; a top baffle and two side baffles are arranged between the left pressing plate and the right pressing mechanism, the top baffle is connected with the left pressing plate and the right pressing mechanism through soft belts, one end of each side baffle is fixedly connected with the left pressing plate, and the other end of each side baffle is connected with the right pressing mechanism in a sliding and sealing mode. A slurry blocking space is defined by the left pressing plate, the right pressing mechanism, the top baffle, the soft belt and the two side baffl