Double-station sample collection device

The invention relates to the technical field of sample collection, in particular to a double-station sample collection device, and aims at solving the technical problems that an existing double-station sample collection structure is large in occupied space and high in cost. The double-station sample collection device comprises a rack, two sets of material taking mechanisms are arranged on the rack, each material taking mechanism comprises a linear driving pair, a rotary driving pair and a material box, each linear driving pair comprises a first fixed seat and a movable part, each rotary driving pair comprises a second fixed seat and a rotary part, each second fixed seat is fixed to the corresponding movable part, each material box is of a barrel-shaped structure, and the side wall of eachmaterial box is fixedly connected with the corresponding rotary part; the double-station sample collection device further comprises a material guide barrel, the lower moving part is fixedly connectedwith a connecting barrel,