Roller combined banana stalk fiber extracting machine

The invention discloses a roller combined banana stalk fiber extracting machine, belonging to the technical field of agricultural machinery. According to the roller combined banana stalk fiber extracting machine, a positive feeding device and a positive impurity scrapping device are arranged at the upper layer of a machine frame; a negative feeding device, a reverse impurity scrapping device and a power distributing device are arranged at the middle layer of the machine frame; a material discharging device and a motor are arranged at the lower layer of the middle layer of the machine frame; and the power of the motor is respectively transmitted to the positive feeding device, the positive impurity scrapping device, the negative feeding device, the negative impurity scrapping device and the material discharging device through the power distributing device under the transmission of a belt. According to the roller combined banana stalk fiber extracting machine, the banana stalk fiber is extracted via the five processes of positively feeding, positively scrapping impurities, negatively feeding, negatively scrapping impurities and discharging; and the device is compact in structure, good in fiber extracting effect, and is capable of solving the problems that the banana stalk has low comprehensive utilization rate, resources are wasted and the environment is polluted; and the method is beneficial for promoting the further comprehensive utilization of the banana stalk within the main banana production area in China, and the economic benefit of planting of the bananas is improved.