Multifunctional foreign fiber cleaning machine

The utility model discloses a multifunctional foreign fiber cleaning machine. The foreign fiber cleaning machine comprises a winding roller arranged on the lower portion of an upper cotton inlet. Barbed nail rollers are arranged at the lower parts of the winding rollers, and lattice bars are arranged on the peripheries of the barbed nail rollers; a U-shaped rack roller is arranged at the lower part of the barbed nail roller; an upper steel wire brush is arranged on the upper portion of the U-shaped rack roller, and a cotton throwing roller is arranged on the lower portion of the U-shaped rack roller. A foreign fiber separation chamber is arranged at the front end of the rotation direction of the cotton throwing roller; an upper impurity removal grating is arranged on the outer side of the U-shaped rack roller; the lower part of the U-shaped rack roller is provided with a recovery rack roller at the rear end of the rotation direction of the cotton throwing roller; a lower steel wire brush is arranged on the up