Pneumatic bottle opener

The utility model provides a pneumatic bottle opener. The pneumatic bottle opener is characterized in that the front end part of a protecting pipe is aligned with the position of a red wine bottle opening; a housing is held with a large force by one hand and then downwards extruded to enable the whole bottle opener to downwards move along the neck of the bottle; moreover, an air needle is inserted into a cork stopper, a protection tube wraps the neck to downwards move together until the air needle is basically inserted into the cork stopper; in case that the air needle is not completely inserted through the cork stopper and the smallest convex edge of a cam is contacted with a baffle, a handle is rotated to drive the cam to rotate to press the baffle, so as to push out the air needle from the protection tube, and as a result, the air needle can be completely inserted into the cork stopper; the air needle is communicated with the baffle, air flows into the bottle through the air needle, the bottle opener is drawn out after air pressure is balanced, then the cork stopper can be easily removed out, and thus the purpose of opening is reached. According to the pneumatic bottle opener, the air needle is small in diameter, so that bits of wood cannot be produced during inserting into the cork stopper, and other foreign materials are not brought into the bottle to influence the quality of red wine.