Adjustable horizontal hole protection facility

The utility model discloses an adjustable horizontal hole protection facility which comprises at least two frames which are laid above a horizontal hole, any frame at least comprises two rectangular pipes and two short square pipes which form a cuboid shape, and the multiple frames are laid in the length direction of the short square pipes; the plurality of short square tubes on one frame are in one-to-one correspondence with the plurality of short square tubes on the other adjacent frame in position; the telescopic rods are used for connecting the two adjacent frames, the number of the telescopic rods is the same as that of the short square pipes, the two ends of each telescopic rod extend into and are fixed in the two short square pipes which are located on the adjacent frames and correspond to the short square pipes in position, and the fixing positions of at least one end of each telescopic rod and the corresponding short square pipe are adjustable; and the protective flat plate is fixedly laid above the