An air-conditioning device is provided that can generate ions without interfering with a flow of air blown out from an air outlet, and allows a user him/herself to easily change an ion generating electrode. Specifically, the air-conditioning device includes: a wind direction changing plate 30 provided in an air outlet that blows out air； and an ion generating unit 40 detachably mounted to the wind direction changing plate 30, wherein a recess 32 is formed in the wind direction changing plate 30, the recess 32 is formed to be larger than the ion generating unit 40 in one direction so that the ion generating unit 40 can be fitted in the recess 32 only in a predetermined position away from one of opposite ends of the recess 32 in one direction, a guide mechanism is provided that slidably holds the ion generating unit 40 fitted in the recess 32, and the guide mechanism slides the ion generating unit 40 fitted in the recess 32 toward one end in one direction to secure the ion generating unit 40 to the wind direction changing plate 30.
