The invention discloses a plasma antibacterial air purification mask, and relates to the technical field of lung protection equipment. The plasma antibacterial air purification mask comprises a mask surface, an air guide pipe, a purification structure, an air inlet structure, an exhaust structure, a spring buckle, a bandage, an air hood and a fixing strip; through adoption of a purification structure, the gas generates plasma gas under the action of a plasma generator, plasma gas production is realized, air disinfection treatment is realized, air is purified, and the purity of air is increased; through adoption of the air inlet structure, jacking of extrusion stem is conducted, a sealing plate is separated from the port of an air inlet cylinder, smooth air intake is realized, when the maskis not used, protruding points are disengaged from positioning grooves, the sealing plate can seal the end opening of the air inlet cylinder under cooperation of sealing springs, dust and viruses canbe prevented from entering the mask when the mask is not used, the cleanliness of the mask is guaranteed, active air inlet is achieved under cooperation of an air inlet fan, it can be guaranteed thatthe air inlet path is single, and the air inlet purity is guaranteed.