Water and fertilizer integrated automatic fertilizer adding device

The invention belongs to the technical field of agricultural instruments, and particularly relates to a water and fertilizer integrated automatic fertilizer adding device. The water and fertilizer integrated automatic fertilizer adding device comprises a main body, a fertilizer box used for storing fertilizer is arranged on one side of the main body, a gravity sensing device used for controlling the fertilizer applying amount is arranged at the lower end of the fertilizer box, and a moving device for driving the fertilizer box to move is arranged at the lower end of the gravity sensing device. Fertilizer is guided into a distributing box through a guide pipe and then flows into a discharging pipe, the discharging pipe is further driven by a motor to rotate so that the fertilizer can slide out downwards through a discharging hole, fertilizer gathering can be effectively avoided through rotation of the discharging pipe, the contact area of the fertilizer and water can be increased, and the fertilizer and the wa