Four-roller transversely-arranged type finishing mill

The invention discloses a four-roller transversely-arranged type finishing mill which is used in steel rolling industry. The four-roller transversely-arranged type finishing mill is designed to mainly solve the problem that an existing transversely-arranged finishing mill cannot process two side faces of a rolling mill. The four-roller transversely-arranged type finishing mill comprises a rack, a mill cover, a lower bearing seat, a lower steel rolling roll shaft, a lower steel rolling roller, a pressing board, an upper bearing seat, an upper steel rolling roller shaft, an upper steel rolling roller, a tile-hanging bolt, a hand wheel, a guide beam groove, a supporting stand column and a guide plate beam. The four-roller transversely-arranged type finishing mill further comprises two guide plates with the general length, the two guide plates are both arranged between the upper steel rolling roller shaft and the lower steel rolling roller shaft, wherein one guide plate is arranged on the left sides of the upper