The utility model relates to an underground tool for oil extraction and gas extraction fields of an oil field, belonging to a pressure-guiding and sand-spraying packer for multilayer fracturing without pulling string. The pressure-guiding and sand-spraying packer is designed for avoiding the problems that existing sand sprayer and packer cannot be independently utilized and more than five layers of the fracturing without pulling string cannot be realized. The pressure-guiding and sand-spraying packer is mainly composed of an upper connector 1, a filtering net 2, a throttling nozzle 3, an anti-wearing sleeve 4, a sand spraying body 5, a sealing ring 6, a slide sleeve 7, an upper steel bowl 8, a rubber cylinder 9, a central pipe 10, a lower steel bowl 11 and a lower connector 12, wherein the upper connector 1 is connected with the sand spraying body 5 and the anti-wearing sleeve 4 is embedded into the throttling nozzle 3. The pressure-guiding and sand-spraying packer for the multilayer fracturing without pulling string is mainly used for a cracking process and has the advantages of simple structure of a tubular column, safety and reliability in process, capability of reducing sand clamping risks and the like.