One-device double-row adjustable seedbed sliding knife T-shaped furrow opener

The invention discloses a one-device double-row adjustable seedbed sliding knife T-shaped furrow opener, and relates to the technical field of crop seeding equipment, and the technical scheme is characterized in that the furrow opener comprises a compaction roller, an adjusting nut, a cross limiting pipe, a connecting rod, a limiting spring, a T-shaped limiting screw rod, a supporting square pipe, a supporting bottom plate and a furrow opening assembly. According to the invention, ditching, seed throwing, soil returning, soil covering and pressing can be completed at a time, and two rows of seeds can be thrown at a time; the ditching assembly with the Y-shaped head is beneficial to sliding cutting ground breaking, and the power consumption of the seeder is reduced; the seeding line spacing and the seeding depth are adjustable, so that the consistency of the seeding depth is ensured, and the agricultural requirements of different seeds are met; when the device works under the condition of heavy and hardened so