Vertical air conditioner

The utility model discloses a vertical air conditioner. The vertical air conditioner comprises a housing, two independent heat exchanging systems and a first air door. The housing is provided with two air return ports and an air supply port; each heat exchanging system defines a first air flue and a second air flue, the inside of each air flue is provided with a heat exchanger and a fan, and the two air flues are communicated with the two air return ports; the first air door is arranged inside the housing and can swing between a first position and a second position; when the first air door is in the first position, the first air flue and the second air flue are connected in parallel, and when the first air door is in the second position, the first air flue and the second air flue are connected in series. The vertical air conditioner can meet the diversified requirements of users and improve the comfort level of the users.