The utility model relates to a horizontal type material pushing centrifugal machine for nitrocotton. The horizontal type material pushing centrifugal machine comprises a centrifugal machine body, an inner rotating drum and an outer rotating drum are arranged in the centrifugal machine body in a coaxial mode, a rotating shaft is transversely arranged in the middle of the centrifugal machine body, the rotating shaft stretches into the centrifugal machine body, and the end, stretching into the centrifugal machine body, of the rotating shaft is connected with the outer rotating drum of the centrifugal machine body, a nitrocotton feeding port is formed in the upper end of the centrifugal machine body and is communicated with the inner rotating drum, the outer rotating drum and a material pushing plate are fixedly installed through a guide ring, a horizontal material pushing shaft coaxial with the rotating shaft is installed on the outer side face of the material pushing plate, a material distributing device is arranged on the inner side face of the material pushing plate, and replacement acid adding ports are formed in the position, transversely corresponding to the material discharging position of the inner rotating drum, of the lower portion of the centrifugal machine body. According to the horizontal type material pushing centrifugal machine, two grades of replacement acid are added, high-concentration and high-acidity raw acid is replaced and reduced in grade, cotton fibers are then washed with water so that the cotton fibers with quite low acidity can be obtained, and the investment cost for the working procedure of boiling water neutralization in a later stage is reduced.