Connection well applied to connection of power distribution network cable trench and power tunnel

The utility model provides a connection well applied to connection of a power distribution network cable trench and an electric power tunnel, and particularly relates to a connection well arrangement structure design used for stable transition of the cable trench and the electric power tunnel when a height difference exists between the cable trench and the electric power tunnel. The connection well comprises a first well chamber connected with an electric power tunnel and a second well chamber connected with a cable trench. Wherein the first well chamber is connected with a power tunnel through a cable protection pipe, the first well chamber is in through connection with the second well chamber, and the second well chamber is in through connection with a cable trench; a cable enters the first well chamber from the power tunnel through the cable protection pipe and enters the second well chamber and the cable trench along the cable bridge on the first well chamber; the first well chamber is provided with a man