The utility model discloses a one-
barrel half multi-
pipe composite
chimney, which belongs to the technical field of industrial chimneys, and comprises a lower outer
barrel, a plurality of lower inner barrels are fixedly connected in the lower outer
barrel through a support, a hole sealing platform is fixedly mounted at the top of the lower outer barrel, an upper single barrel is mounted at the top of the hole sealing platform, and a plurality of lower inner barrels are fixedly mounted at the bottom of the upper single barrel. A
smoke exhaust hole is formed in the position, corresponding to the lower inner cylinder, of the hole sealing platform, the lower opening position of the
smoke exhaust hole is flexibly connected with the top end of the lower inner cylinder through an
expansion joint, an inner cylinder
pulley is installed on the periphery of the lower inner cylinder, and the periphery of the inner cylinder
pulley is movably connected with the inner side wall of the lower outer cylinder. A plurality of inner cylinders can be arranged in the lower outer cylinder and matched with the upper single cylinder to guarantee the
smoke exhaust height, so that the anti-
corrosion area is reduced, the structure of the upper single cylinder is reduced, the overall structure consumption and the manufacturing cost are greatly reduced, and resources and the
investment cost of a user are saved.