Metal tube float flowmeter

The utility model discloses a metal tube float flowmeter which comprises a displayer, a measuring tube body and a flange, a metal level bubble is fixedly arranged on the side wall of the measuring tube body, the inner wall of the measuring tube body is internally connected with a flow dredging tube, a lower guide tube, a conical tube and an upper guide tube in sequence from bottom to top, and a floater is clamped in an inner cavity of the conical tube in a limiting mode. Vertical flow guide plates are arranged on the inner wall of the inner connection flow dredging pipe in an equal-angle circumferential array mode. The device is simple in structure, the convenience of observing the perpendicularity of equipment by personnel is improved by arranging the customized level bubble, the maintenance of the equipment is facilitated, medium flow is directly dredged by arranging the flow dredging pipe, longitudinal internal rotation in the medium flow is reduced, the main direction of the medium flow is further determi