This deodorizing device uses a granular or aggregated physical adsorbent having an inorganic porous material as the main body thereof as is； therefore, the amount of malodorous components adsorbed per unit volume of a malodorous component adsorbing structure (10) can be maximized. In addition, a heating means (46) directly heats an adsorbent (42)； therefore, the temperature of the malodorous components adsorbed by the adsorbent (42) is increased without waste and the same are removed from the adsorbent (42). The adsorbent (42) can be regenerated with low energy consumption by extracting the malodorous components, which have been removed, from deodorizers (16a, 16b, 16c ...) with regeneration air (CA) extracted from a cooling circuit (30). Furthermore, a fixed deodorization column (18) is provided with at least three deodorizers (16a, 16b, 16c ...)； therefore, three steps of deodorization of return air (CA), regeneration of the adsorbent (42), and cooling of the adsorbent (42) after regeneration can be implemented simultaneously as in conventional rotary types.
