Filtering and screening device

A filtering and screening device belongs to the technical field of medicinal material filtering and screening, comprises a mounting base, and is characterized in that a filtering tank is arranged at the upper part of the mounting base, an air source box and a servo cylinder are mounted at the top of the filtering tank, and the air source box is connected with the servo cylinder through an air source pipe; the servo air cylinder is provided with a piston rod in a matched mode, the piston rod penetrates into the filtering tank, a plurality of filtering assemblies are vertically distributed in the filtering tank, the two ends of each filtering assembly are connected with the piston rod and the inner wall of the filtering tank respectively, and a feeding channel is formed in the top face of the filtering tank; the feeding channel penetrates into the filtering tank and extends to the position above the filtering assembly, and a disinfection assembly is arranged on the inner wall of one side of the filtering tank.