Precast box girder longitudinal and transverse slope adjusting device

The utility model discloses a prefabricated box girder longitudinal and transverse slope adjusting device which comprises a bottom supporting plate, a vertical supporting plate is arranged at the bottom of the bottom supporting plate, buttresses are connected to the two ends of the bottom supporting plate respectively, sliding blocks are arranged at the four corners of the top of the bottom supporting plate respectively, and the tops of the sliding blocks are connected with the bottoms of top blocks in a sliding mode. One side of the sliding block is rotationally connected with one end of a transverse screw rod, the other end of the transverse screw rod penetrates through the middle of the buttress, a supporting plate is arranged at the top of the top block, a limiting rod is arranged at the bottom of the top block, and the limiting rod is arranged in a round hole in a bottom supporting plate in a penetrating mode; a vertical supporting screw rod is arranged in the middle of the bottom supporting plate in a p