Beer foamer

The utility model relates to auxiliary tools for beer drinking, in particular to a beer foamer. The beer foamer comprises an upper cover (1) and a lower cover (4), a PCB (2), a beer outlet pipe (7) and an ultrasonic head (8) are installed in the upper cover (1) and the lower cover (4), the PCB (2) is electrically connected with the ultrasonic head (8), the ultrasonic head (8) is close to the beer outlet pipe (7), the PCB (2) is connected to a battery in a battery cover (5) through a power button (3), the top of the beer outlet pipe (7) stretches out of the upper cover (1), the bottom of the beer outlet pipe (7) stretches out of the lower cover (4), and an opening of the beer outlet pipe (7) is adaptive to an opening of a beer bottle (6). The beer foamer is convenient to control, fine and smooth in foaming, small in size and convenient to store.