Air supply device for vertical air conditioner

The invention discloses an air supply device for a vertical air conditioner. The air supply device comprises at least two annular air guide elements which are through in the middle and provided with front and rear openings. Each of the annular air guide elements is a single part, the rear openings of the annular air guide elements are air inlets, and the front openings are air outlets. A plurality of the annular air guide elements are arranged front and back successively, middles of the annular air guide elements form a through air channel, and an annular heat exchange air channel is formed between every two adjacent annular air guide elements. The annular air guide element at the front end comprises a front section and a rear section, the front section close to the air outlet of the annular air guide element at the front end is an outward expanded mixed air flow guide portion, and the rear section close to the air outlet of the annular air guide element at the front end is a heat exchange air flow guide portion. By applying the air supply device in the air conditioner, the structure of each annular air guide element is controlled flexibly conveniently according to air supply requirements, the annular air guide elements different in structures are manufactured conveniently, and the evenness and the speed of supply air can be improved.