Automatic exhaust valve and gettering filter

The invention discloses an automatic exhaust valve and a gettering filter. The automatic exhaust valve is simple and reasonable in structure, the automatic exhaust valve is connected with the gettering filter shell through the installation piece with the exhaust channel, and the exhaust channel serves as an exhaust mechanism communicated with the exhaust port and also serves as an adaptive hole channel of the valve rod. When the automatic exhaust valve is installed and used, whether the valve rod is matched with the exhaust port in the gettering filter shell or not does not need to be considered, only the installation piece is connected with the shell, and the exhaust channel is communicated with the exhaust port, so that the installation mode of the automatic exhaust valve is simplified, and the automatic exhaust valve is easy and convenient to disassemble and assemble and high in universality; a user can quickly install the automatic exhaust valve into different air removing filters for use according to nee