Saline-alkali soil clay barrier layer in-situ deep scarification and fertilization all-in-one machine

The invention discloses a saline-alkali soil clay barrier layer in-situ deep scarification and fertilization all-in-one machine, which belongs to the technical field of saline-alkali soil improvement, and comprises a transmission shaft, a power box, a power structure, a deep scarification device, a three-point suspension structure and a fertilization device, one end of the transmission shaft is connected with a power output shaft of the agricultural machine, and the other end is connected with a power structure arranged in the power box and used for conveying power of the agricultural machine to the power structure; one end of the three-point suspension structure is connected with the power box, and the other end is connected with the agricultural machine body; the fertilizing device is arranged above the power box, an outlet faces the headstock, and the fertilizing device is used for fertilizing during deep scarification; the upper portions of the subsoiling devices penetrate through the power box and are co