The present invention relates to an air conditioner for a vehicle. The air conditioner for a vehicle according to an embodiment of the present invention includes a main body and an electric dust collection assembly. The electric dust collection assembly includes an electrification apparatus for electrifying dust particles in the air and a collector for collecting dust particles electrified by the electrification apparatus and removing the dust particles from the air. At this time, the electrification apparatus and the collector are formed to be capable of being separated by a separate device.