Tunnel leakage maintenance device

The utility model discloses a tunnel leakage maintenance device which comprises a handle, a machine body and a plurality of material injection assemblies, the handle is fixedly installed at the bottom of the machine body, and the material injection assemblies are evenly arranged at the top of the machine body; the tunnel leakage maintenance device is connected with the filling material pumping and repairing device through the connecting joint, all the material injection assemblies are pressed at the leakage position of the tunnel to be repaired, material injection heads and material injection pipes of part of the material injection assemblies are inserted into the leakage position of the tunnel, and the other material injection modules are pressed at the connecting module by the tunnel wall; the corresponding material injection modules are blocked by the corresponding connecting modules, and the repairing filler in the machine body is pressed into a material injection pipe and a material injection head which