Leacher and application thereof as well as device and method for recycling PVC (polyvinyl chloride)-containing waste plastics

The invention relates to the technical field of waste plastic recovery, in particular to an extractor and application thereof, and a device and a method for recycling PVC (polyvinyl chloride)-containing waste plastic. The leaching device comprises a leaching liquid pipe, at least one group of branch pipe components and a dissolving pipe, the branch pipe assembly is communicated with the leaching liquid pipe and the dissolving pipe and is used for distributing the leaching liquid in the leaching liquid pipe into the dissolving pipe; the dissolving pipe is used for mixing and dissolving the leaching solution and the materials in the dissolving pipe to obtain a mixture. The PVC-containing waste plastic is recycled in the extractor provided by the invention, PVC in the waste plastic is fully removed, the PVC dissolving efficiency of the waste plastic is effectively improved, and the corrosion degree of the residual waste plastic to downstream equipment is remarkably reduced; according to the method for recycling