Bidirectional cylinder

The bidirectional air cylinder comprises an air cylinder body, the air cylinder body comprises a bearing table, an X-axis moving assembly and a Z-axis moving assembly, the X-axis moving assembly comprises an X-axis air cylinder piston and a moving table, the X-axis air cylinder piston horizontally stretches into the moving table, part of the X-axis air cylinder piston is located outside the end face of one end of the moving table, and the moving table is arranged on the bearing table. The Z-axis moving assembly comprises a Z-axis air cylinder piston and a fool-proof ejector rod, the Z-axis air cylinder piston vertically stretches into the moving table and is located on the edge of the end, away from the X-axis air cylinder piston, of the moving table, the fool-proof ejector rod is connected to the lower end of the Z-axis air cylinder piston, and a fool-proof hole allowing the fool-proof ejector rod to stretch into is formed in the bearing table. According to the utility model, the fool-proof ejector rod is ad