Building heating and ventilation pipe cutting and welding integrated device

The invention discloses a building heating and ventilation pipe cutting and welding integrated device, and relates to the field of building heating and ventilation pipe machining, the building heating and ventilation pipe cutting and welding integrated device comprises a bottom plate, the top surface of the bottom plate is provided with an inverted-L-shaped supporting plate, and the supporting plate is slidably connected with a cutting mechanism used for cutting a heating and ventilation pipe and a welding mechanism used for welding the heating and ventilation pipe; two clamping mechanisms used for clamping and fixing the heating and ventilation pipe are installed on the top face of the bottom plate, a driving mechanism is further installed on the top face of the bottom plate, and the driving mechanism can drive the heating and ventilation pipe clamped by the clamping mechanisms to rotate so that the heating and ventilation pipe can be machined through a cutting mechanism or a welding mechanism. By arranging