An air duct device and an air handling apparatus are provided. The air duct device can include a housing, a first air duct, and a second air duct. The first air duct is arranged in the housing and has an air input end and an air output end. The second air duct is arranged in the housing and has an air input end and an air output end. The air input end of the second air duct passes by the air output end of the first air duct.