Enhanced exhaust passage manufacturing method

The invention discloses an enhanced exhaust passage manufacturing method which comprises the following steps: firstly, adjusting exhaust passage manufacturing equipment which comprises an outer template and an inner template arranged in the outer template, and the outer template and the inner template are both provided with one of raised stripes, grid lines or wavy lines; steel bars are bent into a frame, a steel wire mesh is cut and folded into a frame shape, and then the steel wire mesh and the frame are tightened through steel wires; the surfaces of the inner template and the outer template are coated with a template removing agent, and then a layer of plastic film is laid; the steel wire mesh with the bound frame is arranged on the inner formwork in a sleeving mode, prepared cement mortar is poured into the steel wire mesh for forming, the exhaust passage formed after the cement mortar is solidified is provided with compression-resistant corrugations formed by stripes, grid lines or wave-shaped lines, the