Calandria wind distribution device

The invention provides a calandria wind distribution device comprising a wind distribution header pipe and a plurality of wind distribution branch pipes, wherein the wind distribution branch pipes are connected with the wind distribution header pipe; the end parts of the wind distribution branch pipes are sealed; and a plurality of groups of exhaust vents are uniformly distributed at the lower side of each wind distribution branch pipe. Hot wind is uniformly distributed in each wind distribution branch pipe after entering into a wind distribution plate from the wind distribution header pipe, then flows out of the exhaust vents in the bottoms of the branch pipes and blows out by clinging to a calandria plate surface. In a working state, the wind distribution device can eliminate the phenomenon of forming a channel or a dead area on the wind distribution plate surface and achieve an ideal wind distribution effect. Meanwhile, the invention is simple in structure and easy to design and produce, saves the investme