Novel foaming device

The utility model relates to the technical field of bubble generation in the flotation process, in particular to a novel foaming device which conveys compressed gas into different gas outlet devices through a gas distribution device and is matched with the gas outlet devices to detect faults of the gas outlet devices, so that the practicability of equipment is improved; the compressed gas can enter the barrel body more uniformly through the multiple groups of gas outlet devices, so that the contact between bubbles and a mineral solution is increased; opening and closing of the air outlet device and the air outlet amount are controlled through the air amount control device, and the practicability of the equipment is improved; the air outlet device is protected through the protection device, so that the pressure resistance of the air outlet device is improved, and the protection property of the equipment is improved; comprising an air pump, an air delivery pipe and a plurality of bubble nozzles, the bubble outp