An activated carbon flue gas purification device including an activated carbon adsorption tower is provided. The activated carbon adsorption tower comprises a lower activated carbon bed layer portion (A), an upper activated carbon bed layer portion (B) and a transition zone (C) disposed between these two portions. The activated carbon adsorption tower comprises a feeder (3) disposed on or at the top of the adsorption tower, a flue gas inlet (1) disposed at the bottom of the adsorption tower and a flue gas outlet (2) disposed at the top of the adsorption tower, the lower activated carbon bed layer The flue gas outlet end G2 of the part A is connected with the flue gas inlet end G3 of the upper activated carbon bed layer part B via the flue gas channel 5. The lower activated carbon bed layer portion A has 2-7 activated carbon chambers divided by the porous separator 4 and thus formed by the porous separator 4, and the lower activated carbon chambers have flue gas flow The thickness increases sequentially along the direction. The upper activated carbon bed layer part B has 2-7 activated carbon chambers divided by the porous separator 4 and thus formed by the porous separator 4, and the activated carbon chambers disposed thereon are flue gas flows. The thickness increases sequentially along the direction.
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