Sprayer with adjustable spraying angle

The utility model belongs to the technical field of spraying equipment, and particularly relates to a spraying-angle-adjustable sprayer which comprises a main body frame, a walking mechanism is arranged at the bottom of the main body frame, first linear modules are symmetrically arranged on the lower half portion of the inner side of the main body frame, and a spraying mechanism is arranged on a first sliding block of each first linear module. The spraying mechanism comprises an inner gear ring fixed to the first sliding block, a fluted disc is arranged in the middle of the inner gear ring, a servo motor for driving the fluted disc to rotate is arranged on the first sliding block, a gear is engaged between the inner gear ring and the fluted disc, a supporting piece is arranged on the inner gear ring, a ball is rotationally connected to the center of the supporting piece, and a transmission rod is arranged on the ball in a penetrating mode. One end of the transmission rod is in spherical connection with the ce