The invention belongs to the technical field of air disinfection and purification, and in particular relates a 
plasma air disinfecting and purifying air conditioner. The 
plasma air disinfecting and purifying air conditioner comprises an indoor cabinet 
machine and an outdoor principal 
machine, wherein the indoor cabinet 
machine is internally provided with a 
plasma reactor, a 
pulse power supply, anair blower, a 
heat exchanger, and the like; the 
plasma reactor is internally provided with a positive 
electrode, a negative 
electrode and a plurality of micro-
discharge preventing conductor rails, wherein the positive 
electrode is made of a plurality of 
metal bands which are arrayed in parallel, the negative electrode is an 
aluminium plate or a stainless steel plate, the plurality of micro-
discharge preventing conductor rails are made of 
aluminium bars or stainless steel bars, and both ends of the positive electrode 
metal bands are respectively fixed on the corresponding positions of the micro-
discharge preventing conductor rails. The invention can not only regulate the temperature, but also kill the 
bacteria and the viruses, degrade the 
organic compound pollutants, remove the granular 
aerosol without secondary 
pollution, has the advantages of energy saving, good reliability and long working service life, is specially designed for the air disinfecting and purifying air conditioner andcan be used for places, such as a hospital, a clean room, an office building, a shopping mall, a hotel, a family, and the like.