Fireproof, anti-corrosion and anti-seismic combined support hanger for air pipe

The utility model discloses a fireproof, corrosion-resistant and shock-resistant combined support hanger for an air pipe, and aims to solve the problems that in the prior art, all structures of a combined support hanger are connected in a welding manner, so that when a hanger support rod and a support bottom support shake during vibration, the hanger support rod and the support bottom support are easy to break with a mounting seat; and therefore, the technical problem that the square air pipe falls off is solved. The combined supporting and hanging bracket comprises a mounting seat, a hanging bracket supporting rod and a supporting bottom support, and the hanging bracket supporting rod is arranged on the bottom side of the mounting seat, so that when the combined supporting and hanging bracket shakes under the action of vibration, the hanging bracket supporting rod can shake on the bottom side of the mounting seat through a universal rotating shaft; when the hanging bracket supporting rod shakes, the spring s