Smoke temperature waste heat anti-icing structure

The invention relates to a smoke temperature waste heat anti-icing structure, and belongs to the technical field of chimney design and construction. Comprising an anti-icing cap, a chimney inner cylinder, an anti-icing tower, a chimney outer cylinder and a rainproof cap. The periphery of the chimney inner cylinder is sleeved with a chimney outer cylinder. A vertical hot air channel is formed by an annular interlayer space between the chimney inner cylinder and the chimney outer cylinder; an anti-icing cap is arranged at the top end of the chimney inner cylinder; an anti-icing tower surrounding the periphery of the chimney inner cylinder is arranged at the top end of the chimney outer cylinder, and a cavity type heat island communicated with the hot air channel is arranged between the inner wall of the anti-icing tower and the outer wall of the chimney inner cylinder. A rainproof cap which is used for achieving free deformation and sealing functions between the anti-icing tower and the chimney inner cylinder a