Pneumatic grouting device

The utility model discloses a pneumatic grouting device which comprises a grouting assembly and a mixing assembly, and the grouting assembly comprises a supporting frame, a double-liquid grouting pump, an air compressor, two material conveying pipes, a supporting plate, a hole packer and a grouting pipe; the mixing assembly comprises a mixing tank, two liquid inlet pipes, a liquid outlet pipe, a supporting rod, a rotating shaft, a stirring rod, two mounting rings and a pushing paddle. The two liquid inlets of the double-liquid grouting pump are respectively communicated with the A-component slurry and the B-component slurry of the high polymer reinforcing material through the pipeline, the air compressor provides power for the double-liquid grouting pump, and the A-component slurry and the B-component slurry of the reinforcing material flow into the mixing tank through the conveying pipe under the conveying of the double-liquid grouting pump, so that the mixing tank is filled with the high polymer reinforcing