PROBLEM TO BE SOLVED: To provide an air-purifying apparatus whose configuration of the apparatus is simplified, thereby shortening the time period taken to clean a medial agent.SOLUTION: An air-purifying apparatus comprises: a housing 500 having an air passage for cleaning, through which air to be disinfected flows from upstream to downstream a spray device 53 which sprays a bactericide solution into air 51 to be disinfected, which is flowing through the air passage 52 a circulating tank 54 for receiving the bactericide solution falling from the air passage 52 a circulating system 55 for feeding to the spray device 53 the bactericide solution of the circulating tank 54 and a medical agent-feeding system 56 for feeding the bactericide solution to the circulating tank 54. The medical agent-feeding system 56 comprises: a feeding part 564 for preparation, which feeds a disinfectant solution at a high preparation flow rate from a supply source a relay tank 541, arranged in the circulating tank 54, for receiving the disinfectant solution fed from the feeding part 564 and a feeding part 566 for refilling, which feeds a disinfectant solution from the relay tank 541 to the circulating tank 54 by using a relay pump 565.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】装置構成を簡素化し、薬剤洗浄を短時間で実施することができる空気清浄装置を提供する。【解決手段】除菌対象空気が上流側から下流側に流れる浄化用通気路を有するハウジング500と、浄化用通気路52を流れる除菌対象空気51に殺菌剤溶液を噴霧する噴霧装置53と、浄化用通気路52から降下する殺菌剤溶液を受け止める循環槽54と、循環槽54の殺菌剤溶液を噴霧装置53に供給する循環系55と、循環槽54に殺菌剤溶液を供給する薬剤供給系56を備え、薬剤供給系56は、供給源から殺菌剤溶液を調製用大流量で供給する調製用供給部564と、循環槽54内に配置し、調製用供給部564から供給する殺菌剤溶液を受け止める中継槽541と、中継槽541から循環槽54へ中継ポンプ565によって殺菌剤溶液を補給用小流量で供給する補給用供給部566を有する。【選択図】図1