The invention discloses an ion-lens ion-wind air purifying device. The ion-lens ion-wind air purifying device comprises a machine shell. An ion-wind channel is formed in the machine shell in the front-and-back direction, an emitting electrode is arranged in the front portion in the ion-wind channel, and comprises a plurality of pole plates made from conductive materials, the place surfaces of the multiple pole plates are located in the front-and-back vertical direction, a list of discharging needles are evenly arranged on the backward side face of each pole plate in the vertical direction, each discharging needle extends backwards in the horizontal direction respectively, a front lens plate is arranged at the back portion of the emitting electrode, multiple lists of circular front lens through holes are evenly formed in the plate surface of the front lens plate in the vertical direction, the backward side face of each pole plate faces one list of front lens through holes respectively, and a needle tip of each discharging needle points to the middle of one front lens through hole respectively. The ion-lens ion-wind air purifying device aims at providing an open space system capable of being applied to the outdoor, the particulate matter concentration on the periphery in an area can be reduced in the short time, a draught fan is not required for driving in the purifying process, and the power consumption is extremely low.