Smoke collecting device for cigarette smoke detection

The utility model discloses a smoke collecting device for cigarette smoke detection, and relates to the technical field of smoke detection appliances, the smoke collecting device comprises a smoking pipe, a leak-proof seat and a cigarette, a piston is movably sleeved in the smoking pipe, one side of the piston is fixedly connected with a pull rod, the upper end of the smoking pipe is fixedly connected with a smoke exhaust cylinder, and the smoke exhaust cylinder is fixedly connected with a smoke outlet. A smoke collecting bottle is connected to the position, close to the upper end, in the smoke discharging barrel in a threaded and sleeved mode, an inlet valve is rotatably connected to the inner wall of the smoke discharging barrel, a guide pipe is fixedly connected to one side of the smoke sucking pipe, a smoke inlet pipe is fixedly connected to the other side of the guide pipe, an installation head is fixedly connected to the upper end of the other side of the smoke inlet pipe, and a two-way lead screw is ro