The utility model discloses a uniform distributor provided with a water cooling device. The uniform distributor is arranged below a discharge hole of a rotary hearth furnace, and comprises a flat car, a blanking chute and the water cooling device, wherein the flat car can move along the length direction of a charge chute arranged below the discharge hole of the rotary hearth furnace; the blanking chute is obliquely arranged on the flat car, and a discharge hole of the blanking chute is arranged towards a charging hole of the charge chute; the water cooling device comprises a water cooling header pipe and a plurality of water cooling branch pipes connected with the water cooling header pipe; the water cooling branch pipes are fixed at the bottom of the blanking chute, and the water outlets of the water cooling branch pipes are arranged towards the charging hole of the charge chute. According to the uniform distributor provided with the water cooling device, the material of the charge chute can be evenly distributed by the flat car capable of moving along the length direction of the charge chute; one water cooling device is additionally arranged on the flat car, and hot pellets can be evenly and rapidly cooled, so that the water consumption is reduced, and the cooling efficiency is improved.