An exhaust apparatus, a battery cell, a battery, and an electric apparatus, are provided. The exhaust apparatus includes an exhaust body and an exhaust mechanism, where the exhaust mechanism includes a connection member and a ventilation member that are provided on the exhaust body, the connection member is configured to connect the exhaust body, the connection member is provided with a plurality of first through holes, the ventilation member covers the plurality of first through holes, and the ventilation member is configured to, when a pressure of gas inside a battery cell reaches a first threshold, exhaust the gas to the outside of the battery cell through the plurality of first through holes.