Deepwater shallow covering layer steel trestle positioning device

The utility model belongs to the technical field of bridge construction, and particularly relates to a deepwater shallow covering layer steel trestle positioning device. The deepwater shallow covering layer steel trestle positioning device is provided with a steel pipe pile of which the lower end is fixed at the bottom of a riverbed; the lower end of the steel pipe pile is sleeved with an hourglass type steel pile casing which is coaxially arranged with the steel pipe pile; the hourglass type steel pile casing is of a frustum-shaped structure with a small upper part and a large lower part; underwater concrete is poured into the hourglass type steel pile casing and serves as an artificial underwater concrete covering layer. A plurality of rows of steel pipe piles are arranged in the length direction of the steel trestle; each column comprises a plurality of columns; the steel pipe piles in each row are connected into a whole by welding cross bracings and cross bracings through channel steel; the top ends of th