Secondary fusion complete ring main unit

The utility model discloses a secondary fusion complete ring main unit which comprises a cabinet body, one side of the cabinet body is hinged with a cabinet door, a cleaning device is arranged in the cabinet body, and the secondary fusion complete ring main unit is characterized in that the opposite sides in the cabinet body are fixedly connected with exhaust pipes respectively, and the ends, extending out of the cabinet body, of the exhaust pipes are fixedly connected with extension pipes; the other ends of the two extension pipes are jointly and fixedly connected with a supporting pipe, the middle of the supporting pipe is fixedly connected with a butt joint pipe, and the butt joint pipe is connected with an air extractor. According to the utility model, the air exhaust effect is realized through the air exhaust pipe, and the air exhaust pipe is correspondingly connected to the butt joint pipe, so that diffused dust caused by opening the cabinet door can be exhausted, and the influence of raised dust on the