The invention relates to a deblocking water-swellable packer. The technical scheme of the deblocking water-swellable packer is that an upper center pipe and a lower center pipe are movably connected through a deblocking liner pipe, the upper center pipe is fixed to the middle of the deblocking liner pipe through an upper deblocking shear pin, the lower center pipe is fixed through a lower deblocking shear pin, an upper blocking ring is fixed to the outer wall of the middle of the upper center pipe, the outer end of the upper center pipe is provided with an upper connector, a lower blocking ring is fixed to the outer wall of the middle of the lower center pipe, and the outer end of the lower center pipe is provided with a lower connector. Water-swellable rubber is processed on the outer wall. The deblocking water-swellable packer has the advantages that by design of the deblocking structure, contraction of the water-swellable rubber can be achieved, deblocking is achieved, the conditions of failure in pulling caused by high resistance of the water-swellable rubber during well repair can be avoided, a huge collapsing force on a stratum caused by a suction effect of the packer when atensile force is reinforced in a forced mode for pulling is also avoided, and the problems of high cost and long operation cycle caused by milling operation through milling shoes are also solved.