The purpose of the present invention is to provide a dust-collection type air purifier having improved performance of collecting alien substances included in the air and having improved performance of removing microorganisms such as indoor-living mold, bacteria, etc., thereby providing a clean and comfortable indoor environment. In order to realize the purpose, the present invention comprises: a housing (100) comprising a dust collection unit (110) made of a nano-mesh, to which static electricity is applied, such that alien substances included in the air are adsorbed and an anion diffusion unit (120) made of a nano-mesh arranged inside the dust collection unit (110) at a distance and electrically connected to an anion generator (320) a heater unit (500) for heating air, which has passed through the dust collection unit (110) and the anion diffusion unit (120) and flown into the housing (100), thereby inducing an air flow in the upward direction and simultaneously generating cations an anion output unit (700) having one end electrically connected to the inner surface of the anion diffusion unit (120) and having an anion output end (730) positioned on the upper side of the heater unit (500) such that anions and electrons are emitted into air that has passed through the heater unit (500) and a blower (400) for blowing air, which has flown into the housing (100), such that the air flows towards the anion output end (730) through the heater unit (500).La présente invention a pour but de fournir un purificateur dair du type à captage de poussière qui présente une meilleure efficacité en termes de captage des substances étrangères comprises dans lair et délimination des micro-organismes, tels que des moisissures vivant à lintérieur, des bactéries, etc., fournissant ainsi un environnement intérieur confortable et propre. Pour atteindre ce but, la présente invention comporte : un boîtier (100) comprenant une unité de captage de poussière (110) constituée dune nano-maille, à
