Two novel schemes are proposed to form double well magnetic surface microtraps for cold atoms using double U shaped or double Z shaped current carrying wires. By changing the direction of current in a straight wire, a double U shaped wire trap will be changed into a double Z shaped wire trap. This study shows that the two double well magnetic microtraps can be continuously changed into a single well one by reducing the current in the straight wire from a suitable value into zero, and vice versa. The spatial distributions of magnetic fields from double U shaped and double Z shaped current-carrying wires layouts and their gradients and curvatures are calculated and analyzed. It is found that the maximum magnetic field gradient greater than 0.2 T/cm and the maximum field curvature (at each trap center) greater than 10 T/cm2 can be generated in our double well magnetic surface microtraps as I 1=I 2=0.2 A. Since there is a point of zero magnetic field at each trap center in the double U-shaped wire trap is only used to realize two-species MOT and to study cold collisions from two atomic samples and so on. The double Z-shaped wire trap cannot only be used to study the collisions of cold atoms, but also to realize and study two-species BEC or experimentally study the properties of double-well BEC and so on.