Granular material packaging machine and using method

The granular material packaging machine comprises a material storage mechanism, a pair of feeding mechanisms, a pair of fixing mechanisms and an adjusting mechanism, the material storage mechanism comprises a supporting frame, a material storage box is installed at the top of the supporting frame and provided with a first material storage cavity and a second material storage cavity which are connected, and materials are arranged in the first material storage cavity; the bottom of the second storage cavity is provided with a pair of discharging ports, the tops of the discharging ports are provided with discharging pipes, the output end of the adjusting mechanism is connected with the discharging pipes, the adjusting mechanism controls circulation of materials in the discharging pipes, the input ends of the feeding mechanisms are connected with the discharging ports, and the feeding mechanisms convey the materials. According to the technical scheme, materials can be quantitatively conveyed into the packages, so