Cooling device for hot rolling transportation roller way

The utility model discloses a cooling device for a hot rolling transportation roller way. The cooling device comprises a cooling water pipeline; the water storage tank is communicated with a water outlet of the cooling water pipeline; the water drainage grooves are formed above the rollers and communicated with the water storage groove, the multiple water drainage grooves are arranged at intervals in the extending direction of the roller way, and water drainage hole areas opposite to roller necks of the rollers are formed in the bottoms of the water drainage grooves. According to the utility model, when the hot rolling transportation roller way conveys hot billets, cooling water in the drainage grooves flows out through the drainage hole areas and drips on the surface of the roller neck, so that the surface temperature of the roller is effectively reduced, the service life of the bearing is prolonged, the cooling water is prevented from splashing to influence the quality of the hot billets when the roller rot