Underwater cutting auxiliary device

The utility model is applicable to the technical field of underwater cutting assistance, and provides an underwater cutting auxiliary device which comprises a cutting box and a cutter, a controller switch is mounted on the outer side of the cutting box, a discharge pipe is mounted on the outer side of the cutting box, a plurality of supporting pads are fixedly mounted in the cutting box, and materials are placed in the cutting box. An adjusting mechanism is arranged at the top of the cutting box, an electric push rod is connected to the adjusting mechanism, an output shaft of the electric push rod is connected with the cutter, pushing mechanisms are arranged on the two sides of the cutting box, fixing mechanisms are connected to the two pushing mechanisms, and the two fixing mechanisms are matched with materials. The adjusting mechanism comprises a transverse lead screw sliding rail and a longitudinal lead screw sliding rail, the transverse lead screw sliding rail is installed at the top of the cutting box, t