Filtering apparatus for removing gaseous pollutants

A filtering apparatus includes a cartridge part, a venturi part, and a filter part. The cartridge part includes: a cartridge unit which is extended to one direction, and is filled with carriers for filtering gaseous pollutants; and a fixing unit which is combined to the upper or lower side of the cartridge unit to fix the cartridge unit from the outside. The venturi part is combined to the upper side of the cartridge part for discharging filtered air, and increases the air supply when being exhausted. The filter part receives the cartridge part in the inside so the outside of the cartridge part can be covered, and has an upper side for fixing the venturi part. 种过滤装置，包括滤筒部分、文氏管部分和过滤器部分。滤筒部分包括滤筒单元和固定单元。滤筒单元沿着个方向延伸。用于过滤气体污染物的载体填充在滤筒单元内。固定单元与滤筒单元的上侧或下侧相结合以在滤筒单元的外面将其固定。文氏管部分与滤筒部分的上部结合，排出过滤后的气体气体及增加清洁气体气体供给。内部设置有滤筒部分的过滤器部分覆盖在滤筒部分的外面。文氏管部分固定在过滤器部分的上部。