Multiplex type guide vane body and pump

A reuse type guide vane body comprises a shell, an inner barrel, vanes connected between the shell and the inner barrel and a lower bearing arranged in the inner barrel in a sleeved mode, and a firstflange is arranged on the first end face of the shell. A second flange is arranged on the second end face of the shell. A third flange is arranged on the end surface of the inner barrel; a fourth flange is arranged on the end surface of the lower bearing; the third flange and the fourth flange are fixed through a bolt; the third flange is provided with a mounting hole group and a redundant hole group; and the redundant hole group and the mounting hole group are rotationally symmetrical. When the hole wire of the blade body is damaged, the whole blade body does not need to be replaced, the blade body can be reused, and the effect of rapid maintenance is achieved; the lower bearing realizes reuse and rapid installation; the flow guide function can be rapidly adjusted according to different working conditions, and th