Automatic snort valve

The utility model relates to an automatic snort valve, which belongs to the field of heating equipment. The utility model aims at providing the automatic snort valve, which has the advantages that the manual control is not needed, and the maintenance is easy. Screw threads matched with a radiator snorting opening is arranged outside the end part of a casing of the automatic snort valve, the other end of the casing is provided with a cover, a float is placed inside a cavity arranged inside the casing, a blocking block is placed in a position corresponding to the snort opening part formed on the casing, a plug pin is placed in a position corresponding to an air hole formed on the casing, a stop sheet is arranged on the casing through screws, and a sealing gasket is arranged in a contact part of the cover and the casing. The automatic snort valve has the advantages that the structure is simple, the installation and the maintenance are convenient, the manual operation is not needed, the automatic snorting is reac