Lighting device for landscaping engineering construction

The lighting device for landscaping engineering construction comprises a construction cap and a cap peak, two first compression springs and a lighting shell are fixedly installed on the inner wall ofthe construction cap, a positive plate is fixedly installed on the inner upper wall of the lighting shell, sliding grooves are formed in the left inner wall and the right inner wall of the lighting shell, and the positive plate is fixedly installed on the outer wall of the lighting shell. Sliding bases are installed in the two sliding grooves in a sliding mode correspondingly, the two sliding bases are fixedly connected with the same negative plate, two springs are fixedly connected to the bottom face of the negative plate, a driving plate is fixedly connected to the other ends of the springs,and two driving rods are fixedly connected to the bottom face of the driving plate. After the head is put in the lighting shell, the driving rod drives the driving plate to extrude the spring, the negative plate and the posit