Adjustable steel ladder

The utility model discloses an adjustable steel ladder. It includes the steel pipe cover, fixed horizontal pole, movable cross rod, first landing leg and second landing leg, steel pipe cover lateral wall and fixed horizontal pole lateral wall fixed connection, the periphery at movable cross rod is established to the steel pipe ways, the steel pipe is sheathe in and is seted up the mounting hole that runs through its lateral wall, first landing leg links to each other with fixed horizontal pole, the second landing leg passes through the mounting hole and links to each other with movable cross rod, be equipped with a plurality of connecting rods between the first landing leg and between the second landing leg respectively, be equipped with the lantern ring on the every connecting rod respectively, adjusting yoke of detachable connection between two lantern rings of same high department. The utility model provides a steel ladder has been overcome the difficult problem that the ladder used, but has been adopted t