To provide a corona discharge type air cleaner being strong in dust collection efficiency by strengthening an ion wind, and having the sufficient sterilization, disinfection, deodorization and dust collection effect.SOLUTION: In a corona discharge type air cleaner 1 composed of a case body having an air suction port and including an upper surface part formed of titanium, a plus electrode constituted of an exhaust hole of a plurality of slit-like hole parts or a grid-shaped hole parts formed in the upper surface part, a cylindrical dust collecting plate 7 suspended on the inside of the case body from the upper surface part and charged to a plus, a stainless needle-like electrode 11 of a plurality of minus electrodes opposed to the plus electrode and a DC high voltage current unit for impressing DC high pressure voltage on the needle-like electrode 11 by generating the DC high pressure voltage by receiving DC low pressure voltage, the air cleaner sterilizes and deodorizes while sticking fine dust in air to the dust collecting plate 7 by rolling in ambient air toward an exhaust hole in the case body, by forming an ozone and a minus ion wind by corona discharge between the minus electrode 11 and the plus electrode.SELECTED DRAWING: Figure 4【課題】イオン風を強くして集塵効率が強く十分な除菌・殺菌・消臭・集塵効果を有するコロナ放電式空気清浄装置の提供。【解決手段】空気吸引口を有しチタンで形成された上面部を含むケース本体と、上面部に形成された複数のスリット状孔部あるいは格子状孔部の排気孔により構成されたプラス電極と、上面部からケース本体の内部に垂設されプラスに帯電する筒状の集塵板７と、プラス電極に対向させられた複数のマイナス電極のステンレス製針状電極１１と、直流低圧電圧を受け直流高圧電圧を発生し針状電極１１に直流高圧電圧を印加する直流高圧電流ユニットからなるコロナ放電式空気清浄装置１であって、マイナス電極１１とプラス電極との間にコロナ放電により、オゾンとマイナスイオン風を形成し、周囲の空気をケース本体内で該排気孔に向かって巻き込み、空気中の微細な粉塵を集塵板７に付着させつつ、殺菌・消臭を行う空気清浄装置。【選択図】図４
