Maintenance device for lining wall

The utility model belongs to the technical field of concrete curing, and discloses a lining wall curing device which comprises a water pump, a water inlet pipe is installed at the bottom of the water pump, a water conveying pipe is installed on one side of the water pump, a controller is installed on the side, adjacent to the water conveying pipe, of the water pump, and a three-way pipe is installed at the end, opposite to the water pump, of the water conveying pipe. Annular pipes are installed at the two ends, opposite to the water conveying pipe, of the three-way pipe, a bottom pipe is installed at the bottom of each annular pipe, a screw pipe is connected to the bottom of each bottom pipe in a screwed mode, and an adjusting pipe is installed at the bottom of each screw pipe. And the adjusted adjusting pipe is screwed with the bottom pipe through the screw pipe, and the sealing head is screwed with the bottom of the adjusting pipe, so that the device can be adjusted according to the depth of the working wel