The invention relates to a multi-level 
tidal current energy 
water turbine based on the real-time adjustable fairing rotation angle. The multi-level 
tidal current energy 
water turbine comprises a fairing, a hub fixedly arranged on a rotation shaft and a basic 
impeller fixedly arranged on the hub. The multi-level 
tidal current energy 
water turbine is characterized by comprising a supporting shaft with the real-time adjustable fairing rotation angle and an 
energy increasing rotation wheel with changeable 
radius hyperbolic spiral 
helix blades, the hyperbolic spiral 
helix blades are gradually stretched in the axial direction of the rotation shaft according to the 
spiral line of the hyperbolic spiral, are in a space intersection twisting shape and are evenly distributed on the circumferential inner wall of the rotation shaft, the hyperbolic spiral 
helix blades are arranged on the periphery of the rotation shaft, X represents the space 
horizontal axis value of the key point on the hyperbolic spiral helix blade section wing curve, and Y represents the space 
vertical coordinate value of the key point on the hyperbolic spiral helix blade section wing type curve. The multi-level 
tidal current energy water 
turbine is simple in structure and high in efficiency, can be used for ocean 
tidal current energy power generation and can also be used for power generation under micro 
tidal current energy conditions such as the mountainous area, the mountain spring and the small reservoir 
stream.