<p>PURPOSE: A gas deodorization device is provided to improve the removal efficiency of bad smell components at room temperature, and to secure the excellent processing function with the small volume of a reactor. CONSTITUTION: A gas deodorization device comprises the following: a first chamber(11) storing water(W); a gas supplying pipe(12) supplying bad smell gas to the water inside the first chamber, by being connected to a bad smell source; a catalyst pellet(13) removing sulfur compound from the bad smell gas supplied to the water; a first processing unit(10) including an air supplying pipe(15) supplying air to the water; a second chamber(21); a bio-filter(22) removing residual bad smell; a nozzle(23); a second processing unit(20) with a gas discharging pipe(24) for discharging the gas after removing the bad smell; a connection pipe(30) connecting the chambers; and a water supply pipe(40).</p>
