The utility model discloses a rolling conduit ferrule for spraying water during steel rolling process. The rolling conduit ferrule comprises a vertical plate and a soleplate which form a long slot body, the rear part of which takes the shape of a bell-mouth. The rolling conduit ferrule is characterized in that wearing plates are arranged at the strip contact parts of red steel and the two sides of the vertical plate; a cover board provided with a water mouth and a nozzle is slantingly arranged at the top of the front part of the vertical plate; and a roller which can rotate freely is arranged below the soleplate and is fixed on a conduit ferrule stand. When the rolling conduit ferrule is in use, the water source is switched on, the rolled piece is guided by the bell-mouth at the rear part of the conduit ferrule and smoothly passes through the wearing plates and the roller, and the water sprayed out by the nozzle not only cools the wearing plates and the roller but also removes the oxidized sheet iron. The rolling conduit ferrule is novel and concise in design, convenient to combine, quick and convenient to assemble and disassemble, wear-resistant and long in service life. The rolling conduit ferrule reduces steel scraping and conglutination and the time of replacing the conduit ferrule is reduced. The rolled piece is in rolling friction with the roller, so the passing resistance is small and the rolled piece can pass through smoothly and quickly. The rolling conduit ferrule has certain descaling effect and saves energy and water resource.