Dust-free treatment device for bubbles of leveling instrument

The utility model relates to the technical field of cleaning devices, in particular to a dust-free treatment device for bubbles of a leveling instrument, and solves the problem that dust is generated due to the fact that a traditional leveling instrument cannot be completely cleaned in the prior art. Comprising a cleaning box, and the cleaning box is columnar and comprises a water inlet and a water outlet with a valve; the placing plate is located in an inner cavity of the cleaning box, a plurality of through small holes are densely distributed in the surface of the placing plate, a plurality of placing grooves with columnar inner cavities are evenly distributed in the upper surface of the placing plate, and a sponge groove with an opening in the upper portion is formed in each placing groove; the mounting plate is positioned at the upper part of the placing plate, and a bulge corresponding to the sponge groove is arranged at the bottom of the mounting plate; and the linear motion structure is fixed with the