Device for offline and online screening of cut tobacco from removed stem slivers of cigarette maker

The invention discloses a device for the offline and online screening of cut tobacco from removed stem slivers of a cigarette maker. The device a left side wallboard and a right side wallboard, the left and right side wallboards are fixed on a baseboard respectively, an airflow channel fixedly arranged on the baseboard is arranged among the left and right side wallboards and the baseboard, the airflow channel has a segment of a continuous Z-shaped separation channel, the side surface of the upper half portion of the continuous Z-shaped separation channel is provided with a funnel communicated with the continuous Z-shaped separation channel, and the side surface of the lower half portion of the continuous Z-shaped separation channel is provided with a gas inlet communicated with the continuous Z-shaped separation channel; the airflow channel is provided with a cut tobacco rotation air-valve and a stem sliver rotation air-valve, and the tail end of the airflow channel is connected with a tapered connecting pipe