To improve heat insulation without making the device structure complicated in the air purifying device (1) that purifies the air in the room by an absorbing member (10) and that is enabled to reproduce by high temperature air the absorbing member (10) that has absorbed the odious smell content or the harmful content.

The first heater (24a) which heats the air for separating odious smell content or the like from the adsorbing rotor (10) and the second heater (24b) which heats the air for resolving the odious smell content or the like separated from the adsorbing rotor (10) by the catalyst structure (25) are positioned mutually adjoined in the reproducing air passage (23).