Highway drainage device

The utility model discloses a highway drainage device, the power distribution box comprises a box body, the first member of inside bottom surface fixedly connected with of box, the upper end of firstmember is equipped with first pivot, the surface of first pivot is rotated and has been cup jointed the second member, the left end sliding surface inlay card of second member has cup jointed the third member. This highway drainage device comprises box and sewer pipe, when having ponding on the road surface, ponding only can beforely leak and mouthful flow down, flow in inside the box, the floaterreceives the inside water level of box to influence and make first plate and second plate on the sewer pipe realize automatic switch, when ponding is less, ponding flows into sewer pipe on by the box, ponding for a long time, first plate and two plates are opened by jack -up, most rivers are direct to be flowed down from sewer pipe, because ponding is few or first plate and second plate can not started when not having pon