Liquid storage device for impurity removal

The invention discloses a liquid storage device for impurity removal, and relates to the technical field of carbon dioxide capture and transportation. The liquid storage device for impurity removal comprises a box body and a plurality of filtering units, a circulation channel is formed in the box body, the filtering units are arranged in the circulation channel at intervals, each filtering unit comprises a filtering net and a filtering box, the filtering net is obliquely arranged in the circulation channel, the top and the two sides of the filtering net are connected with the side wall of the box body, and the filtering box is arranged in the circulation channel. A flow channel is limited between the bottoms of the filter screens and the side wall of the box body, the diameters of meshes of the filter screens are sequentially reduced from top to bottom, and the filter boxes are arranged in the flow channel corresponding to the filter screens and used for filtering impurities in liquid flowing through the flow