Floor cotton harvesting and cleaning all-in-one machine

The utility model discloses a ground cotton harvesting and cleaning all-in-one machine which comprises a machine box and a conversion box which is arranged on the machine box and provides power for all action mechanisms, and a harvesting roller is rotationally installed on the left side of the machine box. A first auger is rotationally arranged on the right side of the harvesting roller; a first reinforcing steel bar screen is fixedly mounted below the first packing auger; an inclined barbed nail roller is arranged on the right side of the first auger; the whole set of equipment is driven to operate through transmission of a tractor, harvesting and cleaning are integrated, cotton is harvested through a harvesting roller, falling cotton is subjected to primary impurity removal through a first auger, secondary impurity removal through six barbed nail rollers, fluffy and hooking through two barbed strip rollers, cotton and impurity separation is achieved, the cotton is conveyed to a cotton box through a fan, sec