The present invention relates to an air ceiling fan having composite functions equipped with a polluted air sterilizing and purifying member. The air ceiling fan is configured in a method such that: a pleasant room is made in the spring and in the autumn by generating a wind and circulating the indoor air by conveniently attaching the fan to a ceiling inside a building efficiency of room cooling is improved through an elevation of a cooler setting temperature and a reduction of excessive air conditioner operating time by diffusing cold air with air circulation of a normal revolution (downward blowing) when using the air ceiling fan together with a cooler in the summer unlike a common ceiling fan hot air around the ceiling can flow in the floor surface through a reverse revolution (upward blowing) which compensates for the difference of upper and lower temperatures in the room, causing a reduction of unnecessary operating time of a heater by providing a sense of coolness or hotness in the entire room through an indoor air circulation, a pleasant indoor environment can be achieved and energy saving is possible and moreover, environment pollution can be reduced, while maintaining the original function of the indoor air circulating ceiling fan a filtration fan function to filtrate and collect large and fine dust drifting in the contaminated air and an air purifying function to effectively sterilize/disinfect the contaminated air by removing or destroying bacteria and viruses in the contaminated air and the air ceiling fan provides composite functions of an air circulating ceiling fan, a contaminated air sterilizing and deodorizing device, a drying device, an insect exterminating device, a negative ion generator using a single apparatus while functioning as interior decorations with excellent appearance.COPYRIGHT KIPO 2016본 발명은 건물 실내의 천정에 간편하게 부착하여 바람을 생성하고 실내 공기를 순환시킴으로써 봄가을에는 정체된 실내공기를 순환시켜 쾌적한 실내를 만들고, 일반 선풍기와는 달리 여름에 냉방기와 같이 사용하면 정회전(아래쪽으로 바람을 보냄)의 공기순환으로 냉기가 확산되어 실내