Waste gas collecting device for waste injection molding part combustion treatment furnace

The utility model relates to the technical field of waste collecting devices, in particular to a waste gas collecting device for a waste injection molding part combustion treatment furnace, which comprises a furnace body, a collecting device and a working table, the top of the furnace body is fixedly connected with a gas outlet, and the gas outlet is connected with a connecting pipe through a fastener. A check valve is fixedly connected to the end, away from the air outlet, of the connecting pipe, the collecting device comprises a sealing box, a suction fan is fixedly connected to the center of an inner cavity of the sealing box, a filtering box is fixedly connected to the bottom of the sealing box, and the collecting box is connected to the top of the working table through a fastener. The worktable is positioned on one side of the furnace body; and the collecting device is arranged, so that waste gas generated by burning waste plastic injection molding parts in the furnace body can be conveniently collected