Tunnel maintenance road side wall cleaning device

The utility model discloses a side wall cleaning device for a tunnel maintenance path, which solves the problem that no special equipment exists in the prior art and is used for mechanical replacement. The device comprises a long rod piece, an electric disc is installed at the front end of the long rod piece, the electric disc is connected with a long rod piece support in a hinged mode, the angle of the electric disc and the long rod piece support is adjusted, an electric control module is installed at the rear end of the long rod piece, two rigid water pipes are fixed, a front cleaning liquid nozzle is installed on one rigid water pipe, and a rear water nozzle is installed on the other rigid water pipe. Wherein the front cleaning liquid nozzle is located at the front upper position of the electric disc and is supplied with cleaning liquid by a micro pump through a water pipe and an electromagnetic valve, and the rear water nozzle is located at the rear position of the electric disc and is supplied with clean