Breaker arc extinguishing apparatus

The utility model discloses a breaker arc extinguishing apparatus, comprising an arc way (7) located among the moving and static contacts (1,2) and an arc extinguish chamber (6) of a breaker, and baffle plates (3) respectively connecting to two sides of the arc way. The two baffle plates respectively possesses an arc part (4)extending above the contact points of the moving and static contacts (1,2) to prevent the arc free steam generated by the moving and static contacts (1,2) from flowing to the operation mechanism of the breaker. The arc parts can reflect the arc free steam flowing to the operating mechanism, so as to block the arc free steam containing metal particles from entering the operation mechanism, to prevent the metal particles from splashing into the operation mechanism, and to avoid arc restriking between the moving and static contacts, thereby raising arc extinguishing and breaking capabilities of the breaker.