Arc extinguish chamber and breaker

The utility model provides an arc extinguish chamber, comprising a housing provided with an inner cavity with an upper opening; the quartz sand is accommodated in the inner cavity; the diameter of screen holes of the steel wire mesh is smaller than the particle size of the quartz sand, and the steel wire mesh is arranged in the inner cavity, compresses the quartz sand, can be melted under the action of high-temperature airflow and enables the quartz sand to be blown away and fully distributed in the inner cavity. The beneficial effects of the utility model are that high-temperature and high-pressure airflow generated during breaking of the breaker is utilized to melt the steel wire mesh and blow away the quartz sand to fully cover the inner cavity of the arc extinguish chamber, so that the quartz sand can be in full contact with an electric arc, the efficiency of cooling the electric arc can be improved, secondary pollution to the interior of the breaker is avoided, and the service life of the breaker is prol