Device for manufacturing blasting slotted hole

The utility model relates to a device for manufacturing a blasting slotted hole, which comprises a foldable diamond saw and a foldable diamond saw fixing device, the foldable diamond saw comprises twodiamond saw blades, a plurality of connecting pieces and a torque force application piece, the two diamond saw blades are arranged on the same plane in parallel, tooth tips are arranged outwards, andthe torque force application piece is arranged outside the tooth tips. The connecting pieces are respectively hinged to two ends of the connecting piece, are symmetrically arranged on two sides of the diamond saw blade and are hinged to the diamond saw blade through first connecting shafts; second connecting shafts penetrating through the connecting pieces are connected to the middles of the corresponding connecting pieces on the two sides of the diamond saw blade. The foldable diamond saw fixing device comprises a fixing rod, a connecting through groove is formed in the fixing rod, a fixinggroove is formed in the dir