Double-crane hanging beam for wind power blade limited space

The utility model discloses a double-crane lifting beam for a wind power blade limited space, which comprises a lifting beam mechanism, the lifting beam mechanism is connected with a lifting tool in the wind power blade limited space, and the lifting beam mechanism comprises a main beam, a shackle and a lifting belt unit; the shackle is installed in the middle of the main beam, the sling units are installed at the two ends of the main beam, and the alarm unit is installed on the outer side wall of the main beam. The double-beam crane lifting beam has the advantages that the adopted lifting structure is direct lifting, the height of a connecting plate is omitted, the double-beam crane lifting beam can be used in a limited space, the lifting hook does not need to ascend to the position above the lower surface of the double beams, and therefore the situation that the lifting beam collides with the double-beam crane in the using process of the double-beam crane lifting beam is prone to occurring; the position ala