The utility model relates to the field of sealing machines, and discloses an environment-friendly packaging bag sealing
machine which comprises a base, supporting legs are fixedly connected to the upper surface of the base, a
machining table is fixedly connected to the upper surfaces of the supporting legs, a breathable plate is fixedly connected to the interior of the
machining table, and a purification box is fixedly connected to the lower surface of the
machining table. The outer wall of the purifying box is fixedly connected with an
air pump, the input end of the
air pump is fixedly connected with a first
exhaust pipe, the outer wall of the first
exhaust pipe is fixedly connected to the interior of the purifying box, and the outer wall of the purifying box is fixedly connected with a connecting
pipe. According to the device, the
air pump is started, air in the purification box is pumped away through the air guide
pipe, the intensity of pressure in the purification box is reduced,
suction force is generated, the effect of absorbing gas for packaging the conveying belt is achieved through cooperation of the connecting
pipe, the flow dividing pipe and the suction
nozzle, and the gas is filtered and purified through the filter plate in the purification box.