Tall space heating, cooling, new air handling unit integrated air circulation. Includes a housing, fans, heat exchangers, condensate separator and electrical automatic control device, the outlet is mounted within the housing vortex blower; use of electric actuator control air vortex blower adjust the angle, avoid indoor air temperature stratification, improve energy efficiency and use of effects air handling unit, to ensure coverage control area windless; compact air handling unit structure, the overall ceiling on the roof, saving floor space; air handling unit with multiple joint installation, no arrangement duct air duct, direct and efficient uniform distribution of fresh air delivery, energy loss, energy saving; sickle blade axial fans, air volume, low power consumption, no maintenance; brass and aluminum plate fin heat exchanger combination yield higher heating or cooling capacity, reduce dust and other impurities in the air heat exchanger clogging; tall space enables fresh air supply, mixed air supply and air circulation using multiple functions, wide range of applications.