Tunnel counter -slope drainage system

The utility model relates to a tunnel drainage technology field, and disclose a tunnel counter -slope drainage system, including the road bed, the upper surface of road bed is provided with water diversion groove, and water diversion groove becomes V style of calligraphy structure, and water diversion groove's the other end is provided with the inlet channel, and the inlet channel setting is at the upper surface of road bed, the road bed both ends are provided with the water storage well respectively, and the water storage well sets up on the inlet channel. This tunnel counter -slope drainagesystem, make in the rainwater gets into the inlet channel through the water diversion groove on the road bed, make in the rainwater gets into the water storage well through the water inlet on the welllid, when the liquid level risees in the water storage well, make and support the rotation of round bar rebound drive dwang, the dwang left end extrudees the balancing pole downwards, make balancingpole compression spring, an