Disclosed is a wet-type air cleaner configured such that a water layer is stably maintained, generation of noise due to a water flow is suppressed, and a stored water tank can be separated and mounted with no concern of water leakage. The cleaner is a wet-type air cleaner comprising: a filter that receives water supplied from a supplied water tank, introduces outer air, and removes contaminants therefrom and a stored water tank that stores water that is supplied to the filter, wherein: the filter comprises a longitudinal barrier that provides a channel configured such that water is attached thereto and flows along the same, and a transverse barrier that extends across the longitudinal barrier so as to form a plurality of water layer holes together with the longitudinal barrier water in the water layer holes forms a water layer by a drawing force the size of the water layer varies depending on the magnitude of the drawing force and the stored water tank comprises a reservoir for storing water, a communication tube connected to the reservoir, an end of the communication tube being exposed to the outside of a case and fixed by a lever, and a guide for providing a path of movement such that the reservoir and the communication tube can be separated from and mounted on the case.Linvention concerne un épurateur dair à voie humide conçu de sorte quune couche deau est maintenue de manière stable, et dont le bruit dû à un écoulement deau est supprimé, et dont une cuve deau stockée peut être séparée et montée sans problème de fuite deau. Le dispositif de nettoyage est un épurateur dair à voie humide comprenant : un filtre qui reçoit leau provenant dune cuve deau, introduit lair extérieur, et élimine des contaminants de celle-ci et une cuve deau stockée qui stocke leau fournie au filtre, le filtre comprenant une barrière longitudinale qui forme un canal conçu de sorte que leau y est retenue et sécoule le long de celui-ci, et une barrière transversale qui sétend dans la barrière