The invention provides a four-roller cleaning machine. A hot-rolled steel coil is put into the four-roller cleaning machine for cleaning after being subjected to acid cleaning, acid liquid and oxide skin on the surface of a steel coil are cleaned, and the hot-rolled steel coil is put into a bleaching groove for bleaching, so that only one bleaching groove is needed in an entire production line, the length of a machining line is reduced, and the land cost is lowered. The four-roller cleaning machine comprises a machine base, wherein a memorial archway structure is arranged on one side of the machine base, and a power mechanism is arranged on the other side of the machine base. The four-roller cleaning machine is characterized in that front and back groups of cleaning rollers are distributed in the memorial archway structure; each group of cleaning rollers is provided with an upper roller and a lower roller; the power structure specifically comprises universal transmission shafts, a transmission distribution box, a speed reducer and a driving motor; the driving motor is connected with the input end of the speed reducer through a belt; the output end of the speed reducer is connected with the input end of the transmission distribution box; the four output ends of the transmission distribution box are connected with corresponding cleaning rollers respectively through corresponding universal transmission shafts.