Uniform air distribution device of large absorption tower

The utility model relates to an air distribution device for an absorption tower, in particular to a uniform air distribution device for a large absorption tower, which comprises a main air distribution pipe arranged at the bottom in the absorption tower and an air distribution branch pipe communicated with the main air distribution pipe, the main air distribution pipe is installed at the bottom of the absorption tower, the central axis of the main air distribution pipe penetrates through the center of the section of the absorption tower where the main air distribution pipe is located, and an air inlet and an air outlet of the main air distribution pipe penetrate through the side wall of the absorption tower and extend to the outer side of the absorption tower. The total opening area of the air distribution openings of the tubular gas distributor is larger than the area of the air inlet, the air outlet amount in unit time is increased, and the effects of reducing air resistance and guaranteeing uniform air dis