Outdoor haze purifying device

The invention discloses an outdoor haze purifying device. The outdoor haze purifying device comprises a machine box, the front side wall of the machine box is provided with an air outlet window, a draught fan is fixedly installed on the air outlet window, the rear side wall of the machine box is provided with an air inlet window, front-row steel rollers and rear-row steel rollers are oppositely and rotatably installed in the front and back of the air inlet window, non-woven fabric is connected between the front-row steel rollers and the rear-row steel rollers in a transmission mode, and two free ends of the non-woven fabric are connected to form a closed loop; the front-row steel rollers or the rear-row steel rollers are connected with a non-woven fabric motor in a transmission mode; a powerful screen is fixedly connected between the two free ends of the non-woven fabric, a closed loop is formed by the powerful screen and the non-woven fabric, and the size of the powerful screen is matched with the air inlet window; the non-woven fabric winds between the front-row steel rollers and the rear-row steel rollers in an S-shaped winding mode. One ends of the front-row steel rollers or the rear-row steel rollers extend out of the machine box and are fixedly connected with driving gears, and the driving gears are connected with a non-woven fabric driving motor through chains in a transmission mode.