Passenger airbag including a partition wall

An airbag including a first protruding panel configured to protrude toward a passenger seat provided in a vehicle, a second protruding panel disposed on one or more of both side portions of the first protruding panel, and a partition wall disposed in the first protruding panel and the second protruding panel and configured to cover an entrance part of the second protruding panel, the partition wall including an inlet hole defined therein, the inlet hole configured to communicate with the entrance part of the second protruding panel in a state in which the partition wall covers the entrance part of the second protruding panel.