Compression type packer

The utility model discloses a compression type packer which is designed to solve the problems of a conventional packer such as a short valid period of usage, great later-period operation risks, poor adaptability to oil pressure and difficulties in opening and closing of a well flushing channel. The compression type packer mainly comprises an upper connector and a lower connector connected with a central pipe, a lining pipe which sleeves the central pipe, a rubber tube which sleeves the lining pipe, a propelling sleeve, a deblocking piston and the like. Compared with a compression type packer used at home and abroad, the packer setting of the compression type packer is airtight, not affected by fluctuation of oil pipe pressure, and reliable in sealing. A well flushing channel is canceled so that the setting and deblocking are more reliable and flexible, and the situations that the channel can not be opened or closed tightly are avoided. Due to the fact that a hydraulic deblocking method and a mechanical deblocking method are used together, double insurance functions of deblocking and sand prevention are achieved. The arrangement of a filter sleeve improves working conditions of the deblocking piston and reliability of operation.