Welding method for angle iron tower clad steel

The welding method comprises the following steps that a first groove is machined in the inner side face of an angle steel butt welding seam, the first groove is filled with a first welding layer, and when the first welding layer is welded, the current ranges from 245 A to 285A, the voltage ranges from 27 V to 29 V, the welding speed ranges from 470 mm/min to 570 mm/min, and the heat input ranges from 7 kJ/cm to 10 kJ/cm; a second groove is machined in the outer side face of the butt welding seam, and the depth of the second groove extends to the center of the thickness of the first welding layer from the outer side face; the second groove is filled with a second welding layer, and when the second welding layer is welded, the current ranges from 245 A to 285A, the voltage ranges from 27 V to 29 V, the welding speed ranges from 470 mm/min to 570 mm/min, and the heat input ranges from 7 kJ/cm to 10 kJ/cm; the outer side of the second welding layer is filled with a plurality of welding layers. According to the in