Movable denitrification filter tank

The device comprises a box body, a filter column and a backwashing unit, the filter column is fixedly installed in the box body, a water inlet in the upper end of the filter column is connected to a water outlet of a water inlet tank through a water inlet pipeline, a water inlet valve is arranged on the water inlet pipeline, and a water outlet is formed in the bottom of the filter column. The water outlet is connected to a water inlet of the water outlet tank through a water outlet pipeline, and a water outlet valve is arranged on the water outlet pipeline. According to the utility model, thewater inlet tank, the water outlet tank, the dosing unit and the filter column are integrated in the container, so that the sewage treatment function is realized, and the transportation is convenient;and the arranged backwashing unit not only can be independently cleaned by wind, but also can be cleaned by water, and can be used for gas-water combined backwashing at the same time, so that a better cleaning effect on the f