Disclosed is an atomizing drainage air conditioner, comprising an indoor unit (1), an outdoor unit (2) and an atomizing device (3) provided in the outdoor unit (2), wherein the atomizing device (3) has: a first atomization outlet (31), the first atomization outlet (31) facing away from the side where the outdoor unit is located; a first water inlet pipeline in communication with a water receiving tray of the indoor unit (1) to introduce condensed water in the water receiving tray into the atomizing device (3); an atomizing member (34) used for atomizing the condensed water; and a driving member (33) used for driving the atomized condensed water to eject from the first atomization outlet (31).