The utility model relates to a streamline-form studded tube, which is applied to the recycling of the smoke surplus heat in the fields such as petroleum, the petrochemical engineering, the coal chemical engineering, the metallurgy, the ceramics, the building materials and the like, and comprises a heat conduction tube (2), wherein a nailhead (1) is welded on the heat conduction tube (2), and the utility model is characterized in that the cross section of a cylinder body of the nailhead (1) presents in a streamline form. By adopting the streamline-form studded tube, the resistant force of the fluid when flowing by the streamline-form studded tube is small, so that the vortex street behind the tail end of the nailhead can be eliminated, the accumulated dust behind the tail end of the nailhead can be eliminated, the cross sectional area can be increased, and the heat conduction coefficient can be improved.