The invention discloses indoor environment governance integrated equipment and a supporting system. The indoor environment governance integrated equipment comprises an air inlet atomization device, aspiral washing device, a cyclone separation blowdown device, a cone blowdown groove, a cold-heat exchanger, a filter, an ozone generator, a refrigerating and heating integrated machine, a water pump and a draught fan; and the supporting system comprises an intelligent automatic centralized control device, a tiny dust content sensor, an ozone content sensor, a temperature and humidity sensor and awind speed sensor. According to the indoor environment governance integrated equipment and the supporting system, the problems of dust removal, humidity adjustment, temperature adjustment, odor removal, deodorization, sterilization, disinfection and removal of volatile organic compounds (TVOC) such as formaldehyde, methylbenzene and ammonia can be solved, secondary pollution is avoided, indoor pollution detection and confirmation are not needed, the purpose of improving the indoor environment can be achieved through direct installation and use, and the equipment is beneficial to health and hasa prevention and control function on infectivity diseases.