Downhole jaw crusher

The utility model discloses an underground jaw crusher which comprises a box body, a static jaw is fixed on one side in the box body, a movable jaw is arranged on one side of the static jaw, a crushing cavity is formed between the static jaw and the movable jaw, the movable jaw is located in the box body and connected with a driving piece, and a discharging channel, a feeding mechanism and a transmission piece are further arranged in the box body. The discharging channel is located above the crushing cavity and fixedly connected with the inner wall of the box body, the feeding mechanism is located in the discharging channel, the transmission part is connected with the feeding mechanism and the driving part, and the driving part drives the movable jaw and the feeding mechanism at the same time when started. According to the utility model, the crushing mechanism and the feeding mechanism in the crusher can be simultaneously driven to move through the driving piece, so that the crusher is prevented from being st