The present invention relates to a multi-purpose air purification apparatus having a dual filtering structure and, more particularly, to an air purification apparatus that suctions outside air, purifies the outside air, and then discharges the purified air to the outside. The present invention includes: a main body portion (100) in which a freshwater portion (110) and a space portion (120) are separated from each other, a suction port (130) is formed on one outer side, and a discharge port (140) is formed on the other outer side a fixing cell (210) configured in the space portion (120) with its entire surface open a purification and collection portion (200) where an air blocking membrane (220) and a filter (230) are configured in order in the fixing cell (210) and an injection unit (300) configured on an inner upper side of the main body portion (100) with one side connected to the freshwater portion (110) and injecting water (W) toward the purification and collection portion (200) after the water is supplied from the freshwater portion (110). The air purification apparatus is capable of maintaining the original purposes of an air purification apparatus and has a simple structure. In addition, the air purification apparatus is capable of creating a comfortable indoor environment by means of complete purification of air suctioned in two stages, and thus is capable of contributing to people&primes health when installed at hospitals, schools, and offices. The air purification apparatus can be used as a dust collector depending on the purpose of use as well, and thus diversity can be given. Furthermore, easy repair and maintenance can be performed on the air purification apparatus based on partial replacement, and thus economic efficiency can be enhanced.COPYRIGHT KIPO 2016본 발명은 이중 필터링 구조를 갖는 다목적 공기정화장치에 관한 것으로, 더욱 자세하게는 외부공기를 흡입하여 정화시킨 후 정화된 공기를 외부로 배출시키는 공기정화장치에 있어서, 내부에 담수부(110)와 공간부(120)가 구획되게 각각 형성되며 외부 일측과 타측에 흡입구(130)와 배출구(140)가 각각 형성되는 본체부(100)와, 상기 공간부(120)에 구성
