Multi-vitamin liquid preparation pipeline and conveying system

A multi-vitamin liquid preparation pipeline and a conveying system belong to the technical field of vitamin liquid preparation and conveying, the multi-vitamin liquid preparation pipeline comprises a preparation tank, a buffer tank and a pipeline main body, flange plates are arranged at the two ends of the pipeline main body, the pipeline main body is provided with an adjusting mechanism, and the pipeline main body comprises two fixing devices, two supporting columns, a base, a supporting frame and a moving block. The right end of the measuring pipe is fixedly connected with the pipeline body, the two fixing devices are located at the left end and the right end of the pipeline body, a first rotary knob is rotated, at the moment, two first meshing bevel gears can synchronously rotate along with a long rod, and a short rod drives a first threaded rod to rotate; at the moment, the two supporting columns can drive the pipeline main body to move vertically and upwards in parallel along with rotation of the threade