High-voltage cable branch box

The utility model discloses a high-voltage cable branch box, which relates to the technical field of power devices, and comprises a box body, the top end of the box body is provided with an air outlet pipe communicated with the inner cavity of the box body, and a top plate of the box body is also rotatably connected with a first rotating shaft; by starting the motor, the power assembly can drive the first fan blades to rotate, the first fan blades divide gas in the inner cavity of the box body into multiple strands and introduce the multiple strands of gas into the heat dissipation copper pipe, the atomization nozzle sprays water mist to the surface of the heat dissipation copper pipe, moisture attached to the surface of the heat dissipation copper pipe can absorb much heat in the evaporation process, and the heat dissipation efficiency is improved. And the cooled airflow flows back to the interior of the box body through the air return pipe, so that heat dissipation of the interior of the box body can be rea