The invention provides a vacuum arc-extinguishing chamber, a coil-type contact element and a current coil. The current coil comprises two branch coils extending in the circumferential direction and arranged in parallel. Each branch coil comprises an upper coil section and a lower coil section which are distributed to be staggered in an upper direction and a lower direction and in series conductive connection. The two upper coil sections are two half turning coil sections arranged symmetrically with respect to the center line of the current coil. The two lower coil sections of the two branch coils are two quarter turning coil sections arranged symmetrically with respect to the center line of the current coil. Each branch coil is a three-fourths turning coil section formed by the quarter turning coil section and the half turning coil section. A current in each of two parallel connection branches formed by the two branch coils passes by the circumferential path of the three-fourths turning coil section, the current path is short, the whole circuit is small, the upper coil section and the lower coil section are arranged in central symmetry with respect to the center line of the current coil respectively, and thus distribution of the magnetic field generated by the current coil is uniform.