Silt preventing and discharging ground anchor for submersible

The invention relates to a silt preventing and discharging ground anchor for a submersible. The silt preventing and discharging ground anchor is provided with bottom claws and an air-oil cylinder chamber, wherein a water inlet and outlet cavity is formed in the center of the silt preventing and discharging ground anchor; an air -oil integrated cylinder and a vertical type oil cylinder are mountedin the air-oil cylinder chamber; the air-oil integrated cylinder is integrally formed by an air cylinder and an oil cylinder; a piston of the air cylinder and the piston of the oil cylinder are in synchronous motion; two ends of the air cylinder are connected with a pneumatic reversing valve; two ends of the oil cylinder are respectively connected with an oil inlet in the upper end and an oil outlet in the lower end of the vertical type oil cylinder; a silt discharging head is mounted at the rod end of a piston rod of the vertical type oil cylinder, adopts the shape of a shutter umbrella, andcan discharge silts in a c