Clean feeder for sublimation kettle

The utility model discloses a clean feeder for a sublimation kettle, which relates to the field of chemical feeding tools and comprises an outer cylinder, an inner cylinder, an annular connecting part, a funnel and an induced air exhaust pipe, the top end of the outer cylinder is vertically arranged near the extension of the bottom of an annular connecting section, the inner cylinder penetrates through the center of the annular connecting part, and the length of a cylinder body of the inner cylinder is greater than that of the outer cylinder. The lower end part of the inner cylinder is positioned in the outer cylinder, the bottom end of the inner cylinder extends out of the bottom end of the outer cylinder, and the upper end part of the inner cylinder is positioned above the annular connecting part; a discharging port of the funnel is connected with an inlet in the top end of the inner barrel, the induced air exhaust pipe is arranged on the side of the upper portion of the outer barrel, and the air inlet end