Steel structure inclination angle measuring tool

The utility model discloses a steel structure inclination angle measuring tool which comprises a magnetic inclination angle digital display instrument, buffer protection assemblies are fixedly installed on the lower portions of the outer surfaces of the two sides of the magnetic inclination angle digital display instrument, and magnetic blocks are fixedly installed on the left side and the right side of the outer surface of the lower end of the magnetic inclination angle digital display instrument. The buffer protection assembly comprises a fixed block, a first mounting groove, a movable column, a buffer pad, a first compression spring, a first through hole, a partition plate, a guide rod, a semicircular clamping groove, a trapezoidal bevel wedge groove, a trapezoidal bevel wedge block, a transmission groove, a through groove, an extrusion column, a pressing block, a second through hole, a second mounting groove, a second compression spring and a circular clamping ball; and the fixed blocks are fixedly mounte