The invention provides an adsorption purifying device for purifying column products. The adsorption purifying device solves the problem that in the prior art, no effective scheme for purifying silicon fluoride and related impurities output from a purifying column exists. The products are the silicon fluoride and the related impurities from the purifying column. The adsorption purifying device comprises a light component removal tower, a heavy component removal tower, a cooling tower, a separation tower, an adsorption column and a plurality of rectifying towers, wherein the towers are connected through pipelines, the light component removal tower is filled with the products, the products of the light component removal power enter the adsorption tower, the adsorption tower and the heavy component removal tower are sequentially connected, the heavy component removal tower is connected with one rectifying tower which is connected with the adsorption column, the adsorption column is connected with the cooling tower, the cooling tower is connected with the separation tower, the separation tower is connected with the adsorption tower, the adsorption tower is connected with the other rectifying tower, and the light component removal tower and the heavy component removal tower each comprise a catalytic combustion device and an inorganic salt processing device. By means of the adsorption purifying device, cost is saved, and meanwhile the environment protection is achieved.