Tunnel dust removal device and tunnel dust removal method

The invention relates to a tunnel dust removal device and a tunnel dust removal method. The tunnel dust removal device comprises a shell, air blowing modules and a dust suction module are arranged in the shell, and the dust suction module is connected with a dust removal assembly; the air blowing modules are arranged on the two sides of the dust suction module and used for forming air screens on the two sides of the dust suction module, the dust suction module is used for sucking air containing flying dust between the air blowing modules, and the air is subjected to dust removal and filtration through the dust removal assembly; and the shell is installed on a walking device, and the walking device can drive the shell to move in a tunnel. According to the tunnel dust removal device, the walking device can drive the shell to move in the tunnel, dust in the tunnel is blown up through the air blowing module arranged on the shell in the moving process, the two air screens are formed, and the dust catching effect i