Smoke exhaust pipe mounting structure convenient to mount and dismount and used for shelter power station

The utility model discloses a shelter power station smoke exhaust pipe installation structure convenient to install and disassemble, which comprises a matching smoke pipe I and a matching smoke pipe II, the matching smoke pipe I and the matching smoke pipe II are in coaxial butt joint, and the butt joint position is connected through a step matching structure; the step matching structure comprises an outer butt joint part formed by cutting the outer side of the smoke pipe of the first matching smoke pipe in the axial direction, an outer step is formed by the outer butt joint part and the first matching smoke pipe, an inner butt joint part formed by cutting the inner side of the smoke pipe of the second matching smoke pipe in the axial direction, and an inner step is formed by the inner butt joint part and the second matching smoke pipe. The outer diameter of the outer butt joint part is the same as the inner diameter of the inner butt joint part, the first matched smoke pipe is inserted into the inner butt jo