In particular, the invention relates to an open-hole well completion tool and a well completion construction technology. Open-hole anchoring flushing type hand dropper, including upper joint upper joint, torque head, ball, inner sliding sleeve, mandrel, inner flushing pipe, ferrule, screen tube, pin, clamping teeth, sliding ring, shear nail, sliding ring , and is formed by connecting the above components. During construction, the screen pipe and the inner flushing pipe go downhole together. After the flushing construction is completed, the pressure ball is put in to anchor the dropper to the downhole, and the pressure is continuously applied, and the upper joint is lifted up to realize the upper joint, the ball, and the inner flushing. The pipe is pulled out together, and the screen remains in the well. The ferrule of the present invention has a unique design, so that small tools can be suspended in a large wellbore, such as a 90mm tool can be riveted in a 130mm wellbore, and the screen pipe and the inner flushing pipe go downhole together for flushing operations; The diameter of the borehole is expanded, and then the screen pipe is run, resulting in unsmooth construction and frequent rework, and in serious cases, the wellbore will be scrapped.