Mine truck lifting pump

The utility model relates to the technical field of lifting pumps, and discloses a mine truck lifting pump which comprises a shell, a first cavity is additionally arranged in the shell, driven gear columns are rotationally connected to the upper portions of the front side wall and the rear side wall of the first cavity, and driving gear columns are connected to the lower portions of the driven gear columns in a meshed mode. The left portion and the right portion of the driving gear column are rotationally connected with the front side wall and the rear side wall of a first cavity, the rear portion of the first cavity extends out of the shell, a second shell is fixedly connected to the lower portion of the rear side wall of the shell, and a rectangular liquid leakage groove is additionally formed in the lower portion of the rear side wall of the shell. The other side of the driving gear column and the other side of the driven gear column are in a vacuum environment, oil can be sucked in from the liquid inlet p