Adjustable forestry seedling raising device

The utility model discloses an adjustable forestry seedling raising device. The device comprises multiple layers of vertically-arranged seedling raising plates, four stand columns are arranged at thefour corners of the seedling raising plate respectively. Rotating shafts are rotatably arranged on the two corresponding sides of the seedling raising plate; two ends of the rotating shaft respectively extend out of the seedling trays and are sequentially connected with gearwheels and pinions; worms matched with the gearwheels are correspondingly arranged on the other two sides of the seedling raising tray; a motor is arranged at one end of the worm; wherein the motor is fixed on the seedling raising tray, a sliding groove is formed in each stand column from top to bottom, a rack is arranged in each sliding groove and meshed with a small gear, a plurality of arc-shaped pipes are arranged above the seedling raising tray at intervals, a plurality of spray heads are arranged at the lower endof each arc-shaped pipe at