Dark toilet exhaust passage concrete one-step forming structure and mounting method thereof

The dark toilet exhaust passage concrete one-time forming structure comprises a large corrugated pipe and multiple sets of outer aluminum alloy modules, a cavity is formed among the multiple sets of outer aluminum alloy modules, the large corrugated pipe is arranged in the middle of the interior of the cavity, and the large corrugated pipe and the outer aluminum alloy modules are fixedly connected through fixing assemblies. The manufacturing method has the beneficial effects that concrete materials are adopted for pouring, so that the concrete exhaust passage has better strength, durability and plasticity, a material basis is provided for manufacturing a one-time formed full-concrete exhaust passage, and the exhaust passage which is firm in structure, smooth in surface and good in sealing performance can be manufactured; compared with the traditional material, the concrete material is more environment-friendly, not only has excellent ventilation performance, but also can reduce the building energy consumption