Dustproof and waterproof instrument and tool box for construction

The instrument and tool box comprises supporting legs and a baffle, a shell is arranged at the upper ends of the supporting legs, a dismounting mechanism is arranged in the shell, a top plate is arranged at the upper end of the dismounting mechanism, and square grooves are formed in the left side and the right side of the upper end of the top plate; a dustproof plate is arranged in the square groove, a clamping plate is arranged at the upper end of the outer portion of the dustproof plate, concave grooves are formed in the left end and the right end of the front side of the lower end of the top plate, L-shaped clamping blocks are arranged at the front ends of the middles of the concave grooves, and the baffle is arranged at the lower ends of the L-shaped clamping blocks. The instrument and tool box for dustproof and waterproof construction is provided with a top plate, a user manually clamps the top plate to a supporting column at the upper end of a dismounting plate, then the top plate is placed at the upper