The utility model relates to an oil well clear wax -proof equipment, especially a clear wax -proof equipment of suspension type is in pit used to no sucker -rod pumping oil recovery well, including rope socket, bumper jar, put in a section of thick bamboo and a medicament section of thick bamboo, wire rope is connected to the rope socket upper end, and the bumper jar is connected to the lower extreme of rope socket, and the bumper jar includes a jarring section of thick bamboo and well core rod, and well core rod sets up the inside at a jarring section of thick bamboo, the lower extreme of bumper jar and throw in a section of thick bamboo and is connected, the middle part cover of throwing in a section of thick bamboo is equipped with the spring, throws in a jack catch that a section of thick bamboo set up through its lower extreme and decides the ware and be connected with blocking, the ware is decided to the card upper portion is the first structure of mushroom, and the middle part that the ware is decided to the card is provided with the slide, installs the anchoring claw on the slide, blocks the lower part of deciding the ware and is provided with the connecting rod, blocks todecide the ware and pass through the connecting rod and be connected with a medicament section of thick bamboo. The utility model discloses under the condition of not playing the tubular column, can adjust input opportunity in a flexible way according to clear wax -proofing agent action period and oil well paraffinication cycle, effectively improve the oil well paraffinication situation, improve clear wax -proofing agent effect.